In some cultures (the Dominican Republic among them) it is at least somewhat common and normal for an older Man to date a younger Woman. And in other cultures (the USA among them) this is something reproachable, and not as accepted.
What are the reasons behind why it is accepted some places, but not in others??
What are the underlying principles as to why some view it as 'ok', and other view it as unacceptable??
As a very unfortunate example -
There are logically arguments and points of view supporting either side, pro or con, so what are they??