Well my mom's like Monica from friends if it's just about cleanliness though it's not a common practice in the PI when eating at a fast food chain to throw your own trash after the least we can do would be to put all out trash on a tray so that staff people could throw it. It's an SOP, if someone finish eating they'll clean the table & wipe it with disinfectant that's just the way things are & if someone will going to use the table, they'll ask the waiter to clean it. I would bet that no one comes close to my mom being a good parent here so stop whining about these nonsense. I'm just curious about these throwing your own trash after you eat because it's not a common practice of ours so don't push it like its all about the parents fault... It's like these, do you wash your mouth after you eat? Some just wipe it with toilet paper. It's a common practice of ours to wash our mouth after we eat because it's more hygienic compare to just a toilet paper but eating is just a metaphor for something you do in the toilet if you had a bad stomach.