Yes, a very good point
My concern is that! You allow them in, you don't charge, they think they run the place, and they aren't always respectful or polite. I have been sitting in on a few lessons, my daughter who has ridden with the one coach a few times tells me they shut right up when I am in there. I am not sure charging a fee is going to change that, but you can bet when the grass is greener elsewhere she is going to take those clients and run. And interesting enough, she didn't have insurance and kept hiding it until I insisted then sent me a copy (valid as of that day!!). They all want to make money but want their costs the absolute lowest.