Most Helpful Guy
American women are paranoid and cry rape/harassment if you say hello. Plus schools punish you growing up for acting like a boy.
So you condition yourself not to talk to women in potentially dangerous ways (i. e. don't talk at all unless professionally obligated), unless you're willing to suffer negative repercussions.
European countries have a less paranoid relationship. At least compared to the U. S. (and it depends upon the country).
Most Helpful Girl
I think it's more common to meet a guy like that when he was not born in the US. It's not in American culture to be open or to be in tune with women. Both of those qualities found together would be odd for an American but I'm sure it does happen sometimes.