I was listening to a conversation the other day between a woman my age who doesn't want children, and a man who doesn't have any. The woman described having a baby growing in her as an alien symbiote that then must be expelled from the body. But, I said, that is not the hard part. They didn't want any further explanation, and I didn't give any. But.. carrying and birthing is not the hard part. Being a parent is.
The hard part is having them with you every day, year after year, while keeping them and yourself safe and sane. And, it is trying to make sure they transition into good people, through all the anxieties, fears and hard times in between.
That's the hard part - and the most rewarding, and the reason we wanted to be parents.