I didn't choose this prompt but I belong to the group that doesn't want to get married and doesn't want to have kids. I think it's a personal choice, even though some people see it as a life stage which everyone has to go through in life (study, get a job, get married, have kids, etc). For sure I will miss out on the joys of fatherhood, and that's fine, there's so much more to life.
I think some see it as part of life, something that has to happen, maybe that's programmed into people...but if it's not right for a person, doesn't happen for whatever reason the so be it. Some things are just not meant to be and if nature prevents it then fair enough It is for this reason I don't believe in IVF.