Genuine answer here, as someone who volunteers for the parks. A lot of times the budgets are tight, depending on whose responsibility it is to clean up the area and what services are there/nearby, the staffing just isn't available. Yeah it's a pretty easy thing to do in theory, but in practice when it becomes "okay and 2 hours of your shift is driving out there and emptying the cans" it's not a far leap to just "Remove the cans, make the snack stand dispose of their garbage on their own"

I mean I get it, the cans are nice but also, like you're an adult. Throw your trash away on your own.

"But then people will throw it on the ground!" Okay then pay someone to stand out there and slap every idiot that thinks littering is okay because they couldn't find a can in 10 seconds.

It's common decency in plenty of places around the world to take your garbage with you until you find a can. It's not hard.

Who’s gonna do it and pay for it?

If people weren’t such babies and cleaned up after themselves, we wouldn’t need to waste taxpayers money on cleaning up after adults who could do it themselves.

Because that would mean employing someone to empty them regularly, and as most woodland is few and far between in this country most woodland owners deem that an unnecessary expense.