I am generally the exact same.
Hate line dancing.
Hate any song played at a wedding that someone runs over to you and tries to drag you out on the floor to dance to (Celebration, We Are Family, etc).
I actually broke my arm one time dancing in a cage (this was many many years ago obviously, in the days of techno) and would happily do it again if asked (no one is asking to see me dance in a cage now and I get it) but despise ‘weddings group dance’.
That said, I am doing the challenge as it is something I would NEVER do, haha, see, reverse logic there. And it actually got me over my fear of making videos of myself and posting them, something I have never done prior. Now I just want to do them all to prove i can do it (for myself).