There was an interesting study done not too long ago on "school discipline" court cases.
The School Rights Project data showed that, where school cases once centered on protecting the rights of the less-advantaged as a group or on free speech rights of students, today's school-related cases are brought more often by the "privileged," to promote their own, and their children's own, interests. These students of privilege are twice as likely as their less-advantaged peers to seek a legal remedy for what they perceive is an "unfair" treatment of themselves as an individual.
Of course, this can be explained in large part to the high cost of litigation. And, randomguy, if you want to support a few lawyers with this nonsense, more power to you. The less-advantaged have, I imagine, better things to do with their money than to spend it on a baseless lawsuit against a school over a (perfectly legal) assigned cleaning task.