When you’re talking about public campgrounds (city, state, federal) “efficient use” of the available sites probably isn’t the top priority for filling them. I would be willing to bet that at the vast majority of PUBLIC campgrounds, the policy I pointed to on the Tennessee state park website is more the norm than restricting 50 amp sites to 50 amp rigs. Why? Because they’re public, and they should be available to anyone willing to pay the fee, in the order they arrive or make their reservation.
:):)