i generally play the m in m/f, but on the few times i've played f's, they've varied in ages from early 20s - 40s, and trying to get smut cr for them in a smut game was impossible. the best i could get was that sort of throwaway lip service smut cr where 'they're totally smutting, really', but it was either all handwaved or i'd get one tag every week or two while they boomeranged with their favorite cr (which wasn't always m/m, so i'm not hating on the m/ms).

it is unfortunately just a lot easier to get cr and smut cr when you're an m/f playing m than when you're a f. and the lack of fs is probably from people who've tried and failed and opted not to keep failing. it's a self perpetuating shitty cycle. i wish we could break it.