Can I decide to not throw away my empty drink cup and my popcorn at the movie?
Are you really serious about not throwing away your own trash?
What? I should take it with me? I mean what would the world become if everyone started rescuing other people rubbish.
People are expected to throw away their own trash. You are being childish and immature with that kind of mentality. Not only is it wrong to litter but you are part of the problem by contributing to climate change.
I don't mind littering in my own home, so why would I care when at the movie theaters when someone else can clean up after me? It's not that big of a deal.
It takes longer for the next people to come in and their movie to start if someone has to clean up all the trash. Littering is wrong anyway and can be easily be thrown out on the way out. You are expected to clean up after yourself like you would anywhere else.