Having children is the greatest thing that can happen to you as a husband and wife. They are infuriating at times when they're little, but on the whole, they're such a joy. I don't think I was the most brilliant mother when they were young. I had quite a bit of help because I was working and I enjoyed my work.
Suppose that every prospective parent in the world stopped having children naturally, and instead produced clones of themselves. What would the world be like in another 20 or 30 years? The answer is: much like today. Cloning would only copy the genetic aspects of people who are already here.