I think that you can go a bit too far when you label the attractiveness of:
- smooth skin
- being petite
- being innocent
as inherently pedophilic.
Children aren't the only people with smooth skin. Children aren't the only people who are petite. It's possible to be attracted to a petite person because you feel protective and nurturing of them IN AN ADULT WAY. It's like saying that anyone attracted to an adult short woman is a secret pedophile. Imagine how that would make a petite woman feel?
As for innocence. There is the innocence of inexperience - and specifically wanting someone inexperienced or "pure" is creepy and a red flag.
But there is also the innocence of someone who isn't cynical, even if they are experienced. Someone who has an idealistic and enthusiastic and wondrous view of the world. I have that view of the world and I'm 28. Some would call that innocence. And that's not pedophilic to be attracted to someone who sees the world as beautiful, and who doesn't inherently mistrust everything or feel cynical about things.