Some of this is definitely a matter of opinion, and I don't just mean cultural difference in U.S. vs other countries. Have you ever been on the New York or DC subways at rush hour? If you don't squeeze against your fellow passengers to let another person in before the doors close, that is considered the height of rudeness because you are hogging space and making people miss their train. Seems like more often on
DCL, I seen an elevator with only 5 or six people (well under capacity), standing near the entrance and not moving back in to let more people.
Same thing with food waste. I don't think it's entirely fair to say people who try things from the buffet and don't finish them is food waste, given the food left behind on the buffet is just as much food waste as food left on a plate. As someone who once worked in a hotel restaurant, unlike an a la carte restaurant where the food is made to order, at a buffet the food is constantly being made and discarded once it sits too long under the heat lamps. Plus, not going to lie, there are some yicky things at the buffet especially when you happen to get something that is not too fresh anymore, and I have definitely gone back for a second plate after discovering much of what I put on my plate the first time is a "dud."