My family and I enjoy camping.   We do have a generator to use when we are either at non electric areas or for backup power.  Having two little children and pets, heat becomes a major issue and camping in the summer  at non electric sites without the aid of a generator will be a no go for sure. If you ban generators, you are going to have less visitors staying.   You could always add more electric sites but I believe from a money standpoint, allowing us to use generators is cheaper than putting in electric across the states at all sites.  Thank you for reading.