Why do some people have pronounced jawlines, and are they attractive?

Anonymous
I'm 18, male, and mine is visible not really "strong", or anything like that. Is it mostly genetics that decide whether you get a pronounced jawline, or is it other factors? I've heard testoterone plays a role, and that kinda saddens me, because when I was in my teens I was a little fat, got bad nutrition and no exercise... could that be why my j-line is a bit weak now? Lol.

Also, girls, do you find them attractive? And how big a deal are they?
Why do some people have pronounced jawlines, and are they attractive?
9 Opinion