I think you misunderstood my point. Wasteful non-biodegradable, non-recyclable packaging is a relatively recent thing. Before plastics came along, food was packaged safely in variants of paper, glass, steel, and aluminum. There’s no reason we couldn’t go back to the pre-plastics way of doing things other than convenience and maximizing profit.
Also biodegradable plastics exist, but they aren’t used as much because they cost slightly more than the non-biodegradable ones and companies don’t want to lose those pennies with every sale. If there was a tax on non-biodegradable plastic for any use outside the medical field, it would probably fix this.
Plastic cups currently have an advantage in that it’s fast and easy to pump out on a mass scale on the cheap.
Waxed paper is probably the next best thing for disposable cups. This is what McDonalds and other fast food places use and it’s renewable and biodegradable. The cost is probably pretty close to petro-plastic.
If we ever get a single use plastics tax, or the public starts freaking out more about microplastics, you will probably see restaurants return to paper cups.

Not really surprising. Petro-plastic isn’t really recyclable. I’d rather they be incinerated than landfilled since they aren’t made of bioplastic.
The good news is that people are starting to get scared of microplastics showing up in their bodies. So we’re probably going to see paper, glass, and aluminum making a comeback.

They are bad when kids get their feet caught in escalators.
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