As a kid I am sure that made more sense than “to save the planet a little”.
I keep 100% of foodstuff out of my trash, and an added benefit is that you never get stinky trash that needs to be taken out. I take my trash out every 2 weeks and it never smells at all.
Alternatively, eat less (or no) meat; it's good for the environment: https://ourworldindata.org/food-choice-vs-eating-local