It's just instinct and biology isn't it? As a healthy human you will want to reproduce, and once a girl starts puberty it's the signal that she is ready to reproduce and your monkey brain is going to pick up on certain things that says you should fuck it

Now if you do fuck it then you are weak willed and incapable of controlling your action like some schizo troon maniac, but simply acknowledging the attraction is fine

Do you know how many people like feet, armpits and licking assholes? And thinking a young girl is hot is apparently fucked up?