The current residents need to like you. They need to meet you, laugh at your jokes, and envisage a future of movie nights and sharing chores and decide whether they're ready to bring you into their life. Beyond meeting for a first date, this sh** is serious. Imagine meeting someone for the first time and having to decide there on the spot if you want to live with them. Weird, right?
I have also been mistaken for a prostitute while travelling alone. Five times. All at locations I haven't needed my passport to get to. Once was at Corley services on the M6. Another was in Wales. My headshot doesn't give much away, so if you want to know what a Welsh prostitute looks like, you'll have to Google Image me.