Do I really have to get up at night to help take care of my newborn?
Why don't you want to take care of your baby?
I just want to get some sleep.
If you choose to have a child, you need to take responsibility. It's not okay to make your wife take on all the hard parts of child care.
Fine. I'll have my grandma take care of him when I sleep at night.
You and your wife chose to have a baby, the responsibility of the newborns care should be shared between you two and not foisted off to the babies great-grandma. New babies are overwhelming and it's exhausting work, but you can do it!