Do women age faster mentally?

I am 19 (20 in August) and my SO is 20 as of Feb.

I guess my question is do men really need extra time to grow up?? Like I feel as if we are still in high school.

It's just always back and forth between us as if he is my kid.

Brush your teeth

Do your hair

You need to shower

Please do the dishes.

But what bothers me most is he acts as if I never do anything. I'll admit if he gets up I'll ask him to grab me a drink or something but damn...I do the laundry and cook and clean. I make sure the bills are paid. I plan trips or make the schedule for the week.

It's exhausting and I feel like I'm insane >.<