Why are younger men attracted to us old birds?

I read somewhere once that a woman's maturity level is 5 years senior to a man of the same age. That means a woman who 20 is equivalent in maturity to man who is 25. But what we are talking about here is a whole different ballgame.

I think a younger man who seeks an older woman does so because the relationship is straight to the point. Both he and she know what he's going there for, no muss, no fuss. However, the younger man could also seek an older woman for financial reasons and purposes.