Offering a fascinating insight into the mind of a child who wants nothing more than to be a girl, 'Lily', 6, reveals to BBC News that she'd always wanted to wear girl's clothes and had known all along that becoming female would make her "happier".
"Now I'm living as a girl, I feel much better," she adds, while drawing a picture of herself in a pink dress.
Open Image Modal
'Lily', who is one of the youngest transgender children in the UK, says that she felt "a bit sad and cross" when she found out that she'd have to wear boys clothes to school.
It's been estimated that between 2% and 5% of the population experience some form of this.
'Lily' confesses that when she wears girl's clothes, it made her feel "much better". And when asked if she'd want to become a boy again as she grows older, she replies matter-of-factly: "No."
A documentary on BBC2, which aired over Easter Bank Holiday weekend, delved behind the issues surrounding transgender children, particularly with them making such life-changing decisions at a very young age.
The show followed the story of Camille, 6, who was born Sebastian. Just like any other six-year-old girl: she loves dressing up, playing with Barbies and her favourite Disney characters are Elsa from Frozen and The Little Mermaid's Ariel.
The only differing factor is that she was born male.
When asked about her life before becoming Camille, she exclaims: “Everyone was calling me Sebastian, but I was a girl. I used to have girl pyjamas with Minnie Mouse on them and I used to sleep in them.”
Camille, who lives in California, has been given varying treatment options including psychological counselling and hormone blockers. Eventually, she will even be able to opt to have gender reassignment surgery.
But in the UK, treatments such as hormone blockers are not prescribed to transgender children until they hit puberty - usually at the age of 16. But is this too late?
In response to the documentary, many people tweeted their shared belief that it's important for children to be able to speak for themselves, rather than their parents doing it for them. With many believing that, in this case, a child's happiness is paramount.
But there were also those who disagreed with the fact that children so young are being "allowed" to make these life-changing decisions by their parents.
With some even questioning why these children know what the term 'transgender' means.
It's no secret that transgender young people are more at risk from mental health issues - with nearly half (48%) of young transgender people considering suicide, according to the Adult Psychiatry Morbidity Survey.
It also found that 59% of transgender people under the age of 26 had contemplated suicide and 30% had attempted it in the past year.
What are your thoughts on gender reassignment at a young age? Let us know in the comments below or tweet us @HuffPoLifestyle
Transgender Acceptance
A person's identity is their own to decide(01 of10)
Open Image Modal
If someone tells you they are a “he”, a “she”, a “they” (which some genderqueer people opt for), use that pronoun. Some people might even refer to themselves as an “it”, but definitely avoid this unless a person has specifically asked. You do not decide a person's identity, they do, both because it’s their right and because they are the only people that can ever truly know. Respect their wishes without question. (credit:DaveBleasdale/Flickr)
If you're unsure how to refer to someone, just ask(02 of10)
Open Image Modal
If you really don't know, the best option is to just ask. Dancing around the subject can be irritating for a transgender person. Think of it like asking someone’s name: until you ask what it is, it’s fine for you to not know! If you’ve not had an opportunity to ask yet, “they” is a good general purpose pronoun to go for. Definitely don’t resort to “it”, “she-he”, “he-she” etc. as most people find these names horribly degrading. (credit:Matiluba/Flickr)
Be careful when talking about the past(03 of10)
Open Image Modal
When you're referring to things in the past, never say things like "when you were x gender", or "born a man/woman". Most transgender people feel like they have always been the gender they have come out to you as, but needed to come to terms with it in their own way. Instead refer to the past without referencing gender, for example, "last year", or "when you were a child". (credit:jasonepowell/Flickr)
Don't be afraid to ask questions(04 of10)
Open Image Modal
Each person is different, so won’t want to talk about it at all, whereas some might enjoy the opportunity to discuss it. The worst thing you can do is be awkward about it; just ask them if they want to talk about it! At the same time, don’t ask questions that would be strange to ask a cis person. Transgender people and cis people should be treated the same – don’t start conversations about their bodies, for example, that wouldn't be normal to discuss with your cis friends. (credit:Eleaf/Flickr)
Forget stereotypes(05 of10)
Open Image Modal
Never call out a transgender person for behaviour which isn’t stereotypical for their identified gender, for example, if your trans-woman friend decides she doesn’t feel more comfortable in trousers sometimes. Gender identity is much more than just the things people do and the way they dress, but it’s not uncommon for transgender people to feel pressured into following stereotypes to “prove” themselves to their friends. (credit:kristin_a (Meringue Bake Shop)/Flickr)
Respect their privacy(06 of10)
Open Image Modal
This one should be obvious, but never out someone unless they’ve made it clear they are openly transgender. It’s up to the individual to decide when they are comfortable coming out to people, and it is possible for them to be out to some people, but not others, so don’t assume that because they’ve come out to you there’s a free pass to tell everyone about it. (credit:anna gutermuth/Flickr)
It's okay to make mistakes(07 of10)
Open Image Modal
Although it is important you try your best to respect a person’s identity, you are only human – if you've known your friend a long time, you'll likely have a lot of habits to break, including a change of name, pronouns, etc. As long as you’re trying, transgender people normally don’t mind. Sometimes they might point out that you’ve messed up, and that’s fine. When they do, measure the tone of their voice: if they are annoyed about it, calmly say sorry and try to ensure it doesn’t happen again. But equally, if they seem happy, don’t make a massive deal of it. (credit:opensourceway/Flickr)
Cross-dressing(08 of10)
Open Image Modal
A cross-dresser is just someone who dresses in clothes stereotypically associated with the opposite gender: cross-dressing does not imply anything about a person’s gender. Eddie Izzard, for example, is a straight cis male who loves his makeup and dresses. Don’t say a cross-dresser dresses in “women’s clothes” or “men’s clothes” – if a male likes to wear dresses that he owns, he’s wearing a man’s dress because they are his. And do not assume that a person's gender correlates with their sexuality - it doesn't. (credit:twicepix/Flickr)
Get the terms right(09 of10)
Open Image Modal
Try to avoid the term 'transvestite' as no one knows what it means. Technically, it just means 'cross-dresser', but it has been misused for a while now. 'Sex' is what body you have whereas 'gender' refers to a person’s identity. Other than the fact it is fairly common for a person’s gender to match their sex ('cis'), the two things are otherwise completely unrelated. 'Genderqueer' is a broad term that covers people that don’t fit into the stereotypical gender binary – that may be because they don’t feel they have a gender at all, they feel that they fit into another, third, gender or that they flit between those options, making them 'genderfluid'. 'Transgender' is someone who identifies with a gender other than their birth-assigned sex. A 'Transsexual' is someone who has physically changed their sex. (credit:.reid./Flickr)
Don't know? Don't worry!(10 of10)
Open Image Modal
If you see someone out in public and you can’t figure out what gender they are, just don’t worry about it! Definitely don’t have a loud conversation discussing what “they might be”, and absolutely don’t try to peek under their skirt or into their shirt to see what 'parts' they’ve got. Yes, some transgender people really do have to put up with that sort of thing. (credit:@Doug88888/Flickr)