I only cared for young characters if they had a cute character and look, even if they were non-humans. Mostly, I wanted a pokemon plushies or something when I was a kid.
Once i grew older and becoming more honest with myself, I started to warm up at this type of characters, starting from Tegami Bachi (I know, it wasn't that great, just like crushes) onward.
Considering that I was always interested in comics of any type and national origins, I searched into the shounen-ai and shojo genre for some of that male cuteness (if there was any).
In the twnties, I overcome my shyness and starting to slowly getting interest in hentais, with yaoi added lately as their stories seemed dumber and more unrealistic than the avarage hentai, especially the loli and shota ones.
Then again, hentai is mostly a coomer material than anything deep to me, unlike certain people and their bullshit crusades.