Double Standards

Girl: How come you can stay up and I have to go to sleep?

Mum: Because children need more sleep than adults.

Boy: How come you don't have to drink milk but I have to?
Dad: Because children need milk to grow healthy and strong.

Girl: How come daddy can play game and eat at the same time?
Boy: Because he is big.

Girl: How come mummy can finish the game (levels) so fast?
Boy: Because she doesn't have homework.

There is a lot of double standards going on in my house. What about yours?