@SheRaaaaa
I do look younger than I actually am, most people I grew up with does, everyone I went to primary school on my facebook does, anyway. We were 80's kids and I think a lot of us 80's born look younger than our age, even the boys. In my case it's probably down to not having children.
Except you don't. I am sure you look fine, and so do all/most of the people you went to school with, but none of you look younger than you are. You all look your age. Why wouldn't you? 
Why the obsession to be thought of as looking younger than your age? And why are people called rude and nasty- or jealous or spiteful, if they say you don't look younger?!
People are just being honest, when they say that if anyone has said you look young for your age, they are merely being polite, or they are bad at guessing ages. Because you do look your age. Everyone does.
No-one is 'bringing anyone down..' It's just that these 'how old do I look' threads are exasperating, because everyone looks their age. Yep. Even you!