Your post reminded me of first poop station I fashioned at picnic grounds
Used a 45 gallon metal barrel cut off and hole in top with a discounted, because it had damage in the plastic, toilet seat from store.
Tucked it behind some shrubs and hung a piece of roofing steel on a couple steel fence posts for more privacy.

It lasted a couple years until I built the plywood outhouses that only get used a few times in a year