My wife is 14 years younger, although since she is 40 I don't think that qualifies me as a cradle robber
I never much cared if an age gap bothered other people, but once I hit around 35 I started to notice that although a hot 20-year-old might turn my head, looking at her was usually more fun than spending the evening with her. Never mind we likely wouldn't have had a whole lot to talk about, I guess when it came to sex I prefered experience to enthusiasm, or better still, both.