Lol in what world? Campgrounds routinely have next to no funding, if they even have power pedestals I wouldn't expect them to be wired for anything more than an RV.
The entire reason we have so many different types of receptacles is so to keep you from plugging in something that the circuit can't handle. They shouldn't be giving people 14-50's if they don't have 50A peak and 40A continuous available. (There is a code exception to only allow 40A peak/32A continuous to a 14-50, but that's all most portable EV chargers draw anyway, so I doubt it even met that. And TT-30 offers no such exception at all.)
The entire reason we have so many different types of receptacles is so to keep you from plugging in something that the circuit can't handle. They shouldn't be giving people 14-50's if they don't have 50A peak and 40A continuous available. (There is a code exception to only allow 40A peak/32A continuous to a 14-50, but that's all most portable EV chargers draw anyway, so I doubt it even met that. And TT-30 offers no such exception at all.)