I imagine there are consultants that go around to gyms (especially chains) and say "We've got x things that are trivial to implement and will guarantee you make

I imagine there are consultants that go around to gyms (especially chains) and say "We've got x things that are trivial to implement and will guarantee you make $123 more per customer on average. Cost for our analysis and recommendations is $12,345 with an assurance that you will make this back in the first 6 months." And one of the things is adding a paragraph to the sign up terms. It's a bit like the toothpaste consultant story.