When discussing the search for a mate or even someone to "hang out with" (a polite euphemism for sex), a woman will often speak of men in terms of dos-- things a man should do, or be. Example: He should take me out to nice places. --or-- He should be at a certain level professionally.
When discussing what a woman is willing to do to attract a man of dos she will turn her vocabulary, switching to that all-time negative, I don't. Example: I don't do oral.
If you insist on using this inverted math past age 30, it'll only add up to one thing: You being sporadically coupled yet ultimately single... for life.