Older Dating - Trends in Dating

If you look around you or watch TV, you've probably noticed there are lots of couples where one person is dating older - or younger, depending on how you want to look at it. Lots of men are dating women who are older. Likewise, lots of women are dating older men. Older dating is the new trend. So what's the appeal? What do women dating older men - or men date younger women? And why do women date younger men - or men date older men?