She is about my age.

Can a child of her age distinguish good from bad?

He is old enough to understand it.

She was a young girl about your age.

I think it's about time you stopped putting your belly before your looks.

I'm old enough to live by myself.

It's about time you got married.

You are old enough to behave yourself.

You are now old enough to support yourself.

You are old enough to know better than to act like that.

At your age, you ought to know better.

You're old enough to know better.

Henry is old enough to support himself.

The kid is old enough to go to school.

You are old enough to take care of yourself.

At your age, you ought to know better.

"You seem tired lately, is everything all right?" "Oh, it's my daughter. She's become all grown up and I'm worried about all sorts of things."