Lots of people can't even conceive of stepping on the dance floor. I find especially here on Lemmy, lots of folks are really introverted and not agreeable to "get out there and try" style challenges. Obviously not universal, but seems quite common here. Folks seem more apt to say "I have limitations that are immovable and that's the end of it". Gotta respect that life they are living, even if for folks like you or I we are motivated differently.