Remember,"middle age" and quality of living is being extended each decade;if you're 26 now,you may still have a "middle age" quality of life when you are in your seventies.Of course,there is no predicting health issues,and health care costs money.But,in theory,as long as you can produce sperm,you can impregnate a fertile woman.Also,kids always have trouble relating to their parents,whether they are 15 years older or 50 years older.The hard part is being a good parent.