I’ve just noticed our gym is open until 1400 Christmas Day. I really can’t image who would go! Maybe those who don’t celebrate Christmas, but this gym is in an area which has little ethnic diversity, to the point that I don’t actually know anyone who doesn’t celebrate it. Maybe childless couples or single people, people with an exercise addiction? Or maybe people who get new trainers or plan to work off the calories they intend to consume.
I just can’t see enough people going to make it profitable.