Yeah I can think of some people I know well married with a decent size age gap and they certainly seem like the ones that are doing well with it.

Honestly I even get weird reactions from some people with just my guy friends because I'm spread out in age both older and younger, or that I have a pretty close relationship with my oldest nephew or cousin both around the early teenage years. It's always women that frown on stuff, seems like the rule now is everyone is in perpetual high school and you're only supposed to pay attention to those in your grade.