Oh, yeah, I've always used wooden spoons/metal utensils. Hubby has this one cheap plastic wide spatula that he's had for 30 years and won't toss but otherwise. I also bought a lot more glassware/storage containers, don't heat plastic in the microwave, tried other variations of non-stick cookware that's made now and the only nonstick I'm concerned with to begin with is frying pans, everything else is non-coated metal, ceramic crockpot, all that. But almost everything non-produce in a(US) grocery store comes in plastic, wrapped in plastic, maybe a plastic inner lining coating of some sort etc. Certain things come in glass jars but not tons.
My mother would always save things like plastic butter/other food containers to use over, so it wouldn't be landfill trash, and I've always done that but then now you wonder if you should be storing food in them (so I don't anymore) and ... can't win. š
I meant the blood-brain barrier aspect specifically, not mirco plastic/plastic contamination is harmful general. Seemed like the stuff I read where some tests were confirming particles were small enough to bypass that (vs. theory) was a few years or so old. But I didn't specifically research that, just random articles.