I had a relative once say that she's vegetarian, won't eat animals. I point out the chicken she's eating and has always eaten, and she says "It's from the grocery store, not an animal". We had to have a long chat. People too divorced from real food and its sources, have some weird assumptions.

My friends mom has been trying the opposite- shes trying to avoid buying any plastic packaged food. Not so much out of concern for microplastics, but as a way to reduce her environmental impact.

Its also helped her eat much healthier- most candy is out, all her veggies are fresh instead of frozen, fresh meats instead of prepackaged ones, etc.