They do when they are at work. People don't carry a tumbler when they go to the movies. There are starbuck's what do you call groupies and alike. The pods produce a lot of micro plastic too.
Years ago I looked for all stainless coffee maker and even the most expensive ones had plastic parts. The drip mechanism for all of them had plastic parts. I don't know if they have changed or not.
Nope! The number of jokes I get at the office coffee machine (well the nespresso next to it) with my shot glass, you wouldn't believe. btw anyone tried the seaweed sphere capsules? :-)