Well, I never felt the need to procreate, but I do have a daughter as a result of a prior marriage.
However, my brother has two sons. I have thought that if anyone in my family cared at all about someone passing on the family name, at least my brother has passed that on. My daughter has already told me that she doesn't want children, but that might change.
I'm not so sure that my genes deserve to be passed down though. The members of my family are not exactly prime examples of mental health.