I was recently traveling on a local bus near the Amazon and an indigenous family sitting in front of me were eating a local snack. When they finished, they opened the window and threw out the plastic wrappers.
At first I couldn't understand how someone who lives so close to nature could do something like that. But then I realized that when the parents were kids, those snacks were probably wrapped in banana leaves, not plastic, so discarding the leaves on the ground would have been perfectly natural thing to do.