This is amazing. People are weird. I switched from a plastic garbage bag in my home office space to a paper bag. I don’t dump grease, spit, coffee, or any other liquid in it. Never have. But people feel compelled to carry plastic around with them anyway. Aren’t there enough doo-doo bags out there? You’d think that people would have wax coated paper by now. “I don’t wanna cut down trees!” Okay, then don’t. Use recycled paper. “Recycling’s not the answer! Reducing is the answer!” Okay, then get a smaller dog. Besides, waxed paper can degrade, and so can poop. Don’t like paraffin (fake wax from petrochemicals)? Then walk quickly home with your poop.
The issue is that people don’t want to change their habits. Back when I was a kid, my mother used a paper grocery bag for garbage with a couple of newspaper sheets at the bottom and stapled an old newspaper to the top of it when full. Nothing leaked. All good.