100%, discovering butt stuffing was a life changing moment for me. Though be very aware sex toy materials in the US aren't regulated, it's perfectly legal to sell you a toy that will give you ass cancer. If it says for novelty use only or something similar, listen to it. Look for platinum cure or medical grade silicone, glass, or stainless steel. Avoid TPE and PVC at all costs. Lube wise, get xLube/kLube powder and make it yourself, WAY more cost effective than buying it already in liquid form and it won't have any irritants, like glycol, which many water based lubes include that actually acts as a laxative when in your ass, making for a much less pleasant experience. If you're looking for something longer lasting or for shower use, coconut oil is also good. Still pretty easy to clean up but is a lot more water resistant and doesn't really dry out. It does stain a bit though, so keep that in mind.
I can guarantee that private school kids do the exact same shit as public school kids. They just have more money, so they can get into more expensive shenanigans, and their parents are able to smooth it over with the cops/lawyers better afterwards.
... But no... First, we shouldn't over generalize or stereotype. Although I'm sure some private schools are shit, most are better than shit public schools because they make a lot of money and can afford to higher teachers that aren't inept.. Occurrences like this are much less likely to happen in a private school. Nothing even close to that kinda shit happened in my private school. The kids I graduated with went to college and got a job. I also had many public school friends, and many of them didn't go to college after high school. The ones that did go to college were much less prepared than their private school counterparts.
I realize this is only my own personal experience, but there it is.