The issue is that while you can drink out of glassware or ceramics (I enjoy those for my coffee and tea), basically everything is carted around in plastic.

If you want to buy water when you're out and about and want it in a glass bottle, your only choices are the "premium" brands that cost an arm and a leg.

And, more generally, it's pretty darn hard to avoid plastics when buying food. When I was a kid, when my parents bought meat from the butcher, it would be wrapped in actual paper, or close enough that it would become unusable once home, and they had to move the meat to solid containers. Nowadays, that "paper" seems to be able to withstand whatever you throw at it. Packaged meats and cheeses always come wrapped in some kind of plastic. The only food I still see in glass containers are "canned" vegetables.