

To be fair, this was the case in my secular(-ish) public school as well and I believe it was there until the early 2000s. The catholic church has many sins (which Squid did a great job laying out above), but I don’t think they, as a group, endorse the concept of corporal punishment like they do with anti-choice practices or the rampant pedophilia. That’s a cultural issue with certain regions of the US.
I’m going to take a different approach than most of the other comments here: you can’t. Microplastics are in the air and a large chunk of it comes from car tire residue. You’re breathing it, likely right now. Research is still in the early phases and we just don’t know how bad it is yet, both from the proliferation and the impact side of things.
Source is Breaking the Plastic Wave and Overview on the occurrence of microplastics in air.