Outdoor showers?

If I could start over, the one thing I'd change would be to include a shower. I left it out because for the most part, we plan to stay in state parks and campgrounds with shower facilities. But now with COVID, it looks like access is pretty limited. Or, will be for a while.
An outdoor shower and enclosure wouldn't be a problem to purchase or DIY.
But... Do the parks frown on them and the water running out on to the ground?
An outdoor shower and enclosure wouldn't be a problem to purchase or DIY.
But... Do the parks frown on them and the water running out on to the ground?