For me there is a big difference between what we see in QAF and "real life." I have said a million times based on what i had read I started watching QAF expecting to dislike the Brian/Justin relationship. Everything I read focused on the age difference and made it sound really like a man having sex with a child. Obviously when I watched the show I didn't feel that way. For those two characters, in their circumstances, the age difference wasn't a problem. That doesn't mean I would feel the same way about a real life couple at those ages. But I think for me even in fiction below 16 would make me extremely uncomfortable even with someone much younger than Brian. I think I am more concerned with the "too young" versus the "too old"