It's not Rihanna's job to live up to our ideal of the perfect role model for young women. She expresses herself for a living. She's very good at it. Right now she's young and spends a lot of time going out. She's really no different from other girls her age in that respect. She just does it on a bigger scale - and we all get to come along for the ride.
To suggest younger women are not interested or ignorant of the women who went before us is insulting, in my activist work I work along women of all ages, I have sat and listened intently to women speak of their experiences at Greenham common, of living in Palestine, of fighting for the rights of migrant and refugee women,
Reflecting on all of this only clarifies the VAGINA SHAMING that I've been exposed to for my whole life. Maybe there's something in the very anatomical detail of it being 'hidden' (compared to the penis) that means you're just not allowed to talk about it. It goes along with the idea that women ought to keep calm and carry on.