A good friend of ours runs a campground -- it has 1 site -- really cool place but you need full hookups to stay there. They bought several acres to build their bardominium on, and the adjacent corner lot that had a hobile home on it. A beautiful stream wraps around that property. There was a septic system there, and a 100amp electrical service and a small lein-to porch adjacent the mobile home. The home home was a 1970's nightmare -- pulled it out and dropped in about 90 tons of rock. They turned the old porch into a rustic picnic area, and of course the power and septic made it a logical choice for a campsite.
On our second night, we threw away a few bottles, but not many considering some were in the bin waiting for the night stop. He said (nicely of couse) that he had no idea how much RV'ers drank Its a thing apparently.
As not to be conspicuous, I stick to wine that comes in a box