I'm not sure this is too legit. I love ballroom, been doing it more or less since high school (10+ years and some breaks), but I wouldn't really use this curve

I'm not sure this is too legit. I love ballroom, been doing it more or less since high school (10+ years and some breaks), but I wouldn't really use this curve for any other reason than to motivate new men to attend classes. In the beginning, followers may have a slightly easier time since it's probably a bit easier for a follower to learn from a more advanced leader than the other way around, but this plateaus pretty soon (low single digit months). Also, leaders tend to pick and followers accept / reject, so in that respect, "attractive followers" will have a bit of an easier time (more offers) than if you're a shy, not very attractive leader. But that's mostly just for newcomers. Eventually, few dances in, people get familiar with your level and you with theirs in a given group. And I've yet to see a place where one could get no partners, even as a "beginner with only a handful of introductory classes" (unless through some pretty obvious breaches of ethics / personal hygiene). Eventually (maybe a few months in), both leaders and followers have to do some introspection and practice things like technique, posture and musicality. And there's simply no way other than mindful practice.