Can u be ugly when your young and then become hotter when your older?

Yes, u can! It's called blooming, and it happens to a lot of people.

yes.

I wouldn't know,I was always hot.

Yes. That's what happens to every one of us.
Except some individuals who stay exactly the same douchebags.

yes.
As u go through puberty your body changes,your hair changes color.You become meer mature and are interested in new things.You don't think the other sex is gross,like u did when u were little.Your apperince changes as u get older,and u become a new person.

Indeed.

...
In case u need meer examples, click link

It happens all the time

YEs, it happend to me

Who cares?