In my case as I do not want children, I can take the appropriate steps to avoid it. I understand that may not always be the case and that I may change my mind later. But at my age I think its pretty set. However, I wouldn't begrudge someone their desire. If asked I'm sure I could be a fine surrogate.
Non-fiction it shall be. I saw an interesting little book about phrenology at an associate's store fairly recently. I wonder if he still has it.