I would pay (and there are many asides as to why) BUT I can understand why some men don't want to. They say the equality movement should make all those old ideas of chivalry go out the window (which are kinda sexist, if you really think about it). Because feminist have all these ways to undercut men's role in relationships. It's like they want to give a man the responsibilities of manhood but not the privileges.
They may say, "Oh, a man should pay, Be a man."
Man, "Who is the head of the relationship?"
Her, "There is no head, you chauvinist. We are both our own heads."
Man, "Well, as equals, we will split the bill 50/50."
*drops his half and walks off*
Since back then men were the only ones working and making money it made sense for them to be the ones paying. Now with women finding success just as often -- if not more often -- as men, they should have no problem chipping in on the cheque. And not have this entitled attitude to a man's money.
Couple that with the fact that many date for fun, to get a good time and a free meal and it makes you wary of being used.
says makes sense too. If you asked her out then it would makes sense that you would pay.