Eh, kids often find other kids attractive I think,
But as people grow up, most people lose their attraction to kids.
Maybe when we are older,
Our preferences change again.
Besides, lot of people, myself included aren't 'perfect, even when young.
Everyone's got flaws,
And not everyone has a six pack.
I wouldn't find a doppelganger of myself particularly attractive. Too average, and could stand to lose some weight, gain some muscle.
But flaws don't stop people from having meaningful and active relationships I'd assume.
Arguably the picture in post #4 is an unattractive style, facial expression, and body care even in a younger individual.
Milfs and Gilfs 'are descriptions some people use for some individuals.