Not a snow bird for now but has a camping preferences of national park, national forests, state/county/city parks. Moves a lot too that we rarely even set up outdoor items.
We first have a 21 being pulled by a 4.0L SUV. Sweet spot for trailer weight and towing capabilities.
At that size we've encountered limits on public campsites so I imagine it's a bigger issue for larger rigs.
We've upgraded to 26 feet trailer and we find it the most ideal for the bathroom (stand in the shower) and a sofa where we can lounge around in case we are caught in heavy snow (as we had in Yosemite) and need to stay indoors.
Ideal too for our quick unhitch-and-go camping and tourist lifestyle.