I’ve also seen US teachers spending hundreds of dollars out of their own pockets to stock classrooms.
I spent a lot of time in European schools and I’ve never heard of teachers having to stock their own classrooms or fundraise for things like playgrounds, etc.
My understanding is salaries are higher in the US in part because of the lack of universal healthcare, and other things that end up coming out of people’s pockets when compared to Europe. I did a little digging on the site, and it does look like salary and benefits are up to 80% of the cost.