No, I don't think it's just in Hollywood...

I just think that's where we hear about it the most.

I don't think I know of a large age gap among my acquaintances..... but I used to. My brother-in-law married a lady 30 years younger than him. It did not turn out well. That was many years ago.

I don't claim to have any meaningful input on this topic, just expressing my perceptions. With Buzz I have no problem believing his marriage could be great.