True story: A friend of mine married a man who was 20 years older. Now my friend who loves life and is very active doesn't get to be as active as her friends who are married to men their age. She misses out on a lot of events and has experienced serious problems in other "areas" of their relationship due to the fact her husband is elderly. Age does impact stage of life.
So keep in mind "older men" get elderly fast and there is a very high chance you will end up being his care taker.