What is the matter of marriage?

The child asked his father-

Boy: Father, what's the matter of marriage?

Dad: Get away from me right now!

The boy moved away after father rebuked him. The father again said,

Dad: Why do not you come in front of me?

Boy: Father, what am I blaming? You are

Dad: Right! Married life is just like this. If you grow up, you know, father, now mind play!