I think women should pay 50% of the date if not 100% depending on how you go about getting the date especially on the first few in westernized countries. If your in a more poor country (example south/Central America) then if taking a girl out where the date may be $40,000cop which for her may be extremely expensive but to you should only be like $10-14/USD then you shouldn't really be traveling anyways.
"For each man must learn to live within the citadel of himself."
-Marcus Aurelius