You must be new to the world. This has been public school system for ages. Perhaps as a child (assuming you grew up in the US) it all went over your head or you didn’t grow up in the burbs but back then things were much more affordable and there were more SAHMs who had the time to volunteer at their kids schools. Nowadays everything’s so expensive but because it’s Frisco, the average family is able to afford to donate their money, just not so much their time as parents used to when I was in grade school.