>>938862206
I don't have the answer to this, but I imagine certain physical attractions to preferences starts pretty early on in childhood. I can pinpoint around the time as a kid I started to find loli attractive, thinking I'd eventually grow out of it. But when I hit 18 it didn't really stop and I felt a lot of guilt over it. I've tried not to look at stuff like that but it's difficult to ignore. It's not the only type of (drawn) girl I'm into though. Just what I'm attracted to the most.
As for someone who's a non-loli turning into one, I'd guess the answer is no unless they've always had a secret attraction but never fed into it until years later.