To each their own, but personally I wouldn’t have kids after 50. I know someone could be really healthy at 50-60 (sometimes more so than people half their age) but the body starts to kind of take its own course after 70. For me it would be more about the kind of quality time I could spend with my kids. I don’t want a teenage kid having to deal with a parent dying of old age or illnesses, which is totally possible if you have kids after 60.