There is a phenomenon in the ballroom world that I suspect exists everywhere, but I've never seen spoken about in exactly these terms anywhere else. It is the notion of leader hell and follower hell.
The idea here is that, while both dance roles are equally difficult, they are difficult in different ways and the most challenging domain of learning does not appear at the same time for each.
Leader hell afflicts beginners and intermediate dancers the worst. The leader needs to master not only their own individual movement, but also consider how to clearly communicate their intentions (projection) and live a few seconds in the future for the purposes of floorcraft. That is a nasty, almost impossible expectation for someone who is still mastering posture and walk.
By contrast, follower hell comes much later. When dancing with a leader in the depths of leader, hell, a follower isn't getting the kind of consistent, clear, non-disruptive signaling that allows them to work properly on their craft. So they approximate and muddle through and essentially wait for the leader to become good enough that they can start earnestly working on themselves.
Once a leader is high-intermediate or advanced, they stop constantly disrupting their follower, and then the follower enters follower hell. It is similar to leader hell, with the required deep focus on many topics at once. But in some ways it is worse, because the follower may have gotten used to a half-baked, defensive approximation of their role that is the maximum the poor lead would allow, and they now believe that this approximation is actually what the role entails in full. It can require basically a complete brain rewiring, with a ton of long-ingrained bad habits needing to be unlearned. With the followers I've studied with, it can lead to a crisis of confidence, because the dancer thought they were so-and-so-good, only to suddenly have the entire critical attention of the coach focused entirely on them, seemingly out of nowhere.
I bring this up because I think it is the what causes the phenomenon you described, where leaders want more practice (leader hell) that followers aren't especially interested in (waiting for leaders to get through hell), as well as the perception that men need more classes-- because, in the phase of leader hell, they absolutely do.