This notion that you see in some circles that's just neato keen to date women young enough to be your children.
It doesn't sit well with me either... It's a subject I've talked a lot about with John O.
If both are mature adults and both are agreeable why should it be a problem? I've met some girls of 21 who were extremely mature and some men of 60 who were still teenagers. If, for example, a women of thirty meets and falls in love with (or more exactly determines that she is compatible in every way and then falls in love with) a man of 45 why would that be creepy. They are both adults.
How is that any different than two 30 year olds or two 45 year olds?