Electric vehicles account for around 1% of the vehicles on the road in the US. Even if those percentages equally applied to RVers (which they are not, since there are almost no electric vehicles towing trailers and very few being used as tow cars since 4 wheel down towing is currently not available) a park would lose at most only 1% of their business by not having EV charging available. To chase that 1% would involve both a capital investment in charging equipment and installation of that equipment. Even with RV charging it is likely the park would capture less than that potential 1% since some people would not have a requirement to charging available when they choose where they are going to stay. The park would be much better served financially to invest that money into advertising or amenities that would attract the 99% who do not require EV charging.
Even if the most optimistic projections come to fruition, it will be a decade or more before EVs become even a large minority of the vehicles on the road. It is very likely that the technology and infrastructure for recharging will greatly evolve over that time. There is really no reason whatsoever for a RV park to make an investment in EV charging at this time. It isn't always necessary or wise to be part of the leading edge.
