Is it normal for a 20 year old to date a 71 year old?

Theres a pretty big age gap there, and some people will find that weird and unusual. But if the love is there and your not just in it for his/hers will, then go for it and don't give a damn about what they say.

With these times, no, it's perfectly normal. But most people would say it's disgusting.

yah i agree with the first comment make sure she or he doesnt rob you off your money