Vegetarian here so can't answer for the meat and bones, but absolutely on the fruit and veggie front. Peels have a ton of nutrients, texture, and flavour
I do haha. I know it sounds gross to a lot of people, but once you get over the mental block of "only the fruit inside is food" that most of us are raised with, they're actually quite tasty. You can dry them out and make a tasty snack too if you don't want to raw dog them
I know lemon and orange peels have a lot of flavor because I'll scrape a bit for "lemon zest" in some dishes. It however, does not mean I eat the peels.
Yes, I do. That's what I was saying I'm my comment above. And just because you perceive them as highly unpalatable, does not mean thst everyone else does too.