Maybe it's my age, but I always thought a guy ALWAYS paid. Guess times have changed...
I can not find the exact quote, but it was on these forums. I swear it was in this thread, maybe it was deleted, or maybe I'm dismembering it from a different thread of a similar vein.
A female had said, in response to the idea of having to work and split things, "What, I'm supposed to give up the last traditions and privileges of being female?!" to which I could only think "If you have a privilege as a female, and you lambaste men for being 'privileged' then yes, you do." (Also, genders shouldn't have privileges, so you still should.)
I do realize that this is a common thought, but I do very much think that it originally came about based on the idea that women are less capable, or don't work, or ultimately are going to be a housewife. Everyone comments "To show her you can take her of her" or something to that effect. Well... but why? In today's world, many of us don't have careers (read:salary) and in that environment, it's not nearly as common for women to be paid less. Assuming my girl and I both work (right now) at Walmart, we're getting equal pay. So... if she's working, she can take care of herself. She shouldn't need or WANT me to do that. It's an idea that many women (and men) still hold, but it's an evolutionary social relic and it needs to go.
Edit: Speeling.
I do want to say something, by the way.
Obama got a lot of flack from the intellectual (more researchy side, anyway) side of the internet when he quoted that "Women make $0.77 for every $1 men make." Except that's not really true.
"The 23-cent gender pay gap is simply the difference between the average earnings of all men and women working full-time. It does not account for differences in occupations, positions, education, job tenure, or hours worked per week. When all these relevant factors are taken into consideration, the wage gap narrows to about five cents. And no one knows if the five cents is a result of discrimination or some other subtle, hard-to-measure difference between male and female workers. In its fact-checking column on the State of the Union, the Washington Post included the president’s mention of the wage gap in its list of dubious claims."
The same article also points out that men are, typically, more likely to choose higher paying careers, whereas women seem more likely to choose more passionate (but lower paying) careers. This accounts for a good portion of the perceived gap. You need to take life choices, lifestyles, etc, into account as well. Many more women work part time then men, and averaging out their yearly pay seriously hinders a comparison at first glance (it's easily accountable for by looking at per-hour-pay, but most studies don't put headlines that way, and most people don't check sources really).