@mia >makes you think twice about wasteful packaging and single-use containers because you're gonna be carrying that shit all the way home
Japan is well known for its wasteful packaging and single-use containers (for example, individual oranges are sometimes shrink-wrapped) and also some old people try to shame others for eating outdoors - so typically people either eat the food near the seller and dump the packing in the provided bins, or carry the food home and then eat it.

>inconvenient when it's summer and you gotta stay hydrated somehow
Have you heard of the concept of tap water and a nice glass or metal water bottle that's added microplastic free?