I think the school is totally out of touch, and doesn't seem to grasp how sensitive kids can be and how much they absord from everything around them.
In my opinion, parents who let their kids use the internet, watch whatever on TV, listen to any music, or have phones and apps with wide-open internet access are being completely irresponsible.
I once helped out a friend who was going through a really rough divorce. Her narcissistic ex-husband ended up retaliating against her with lawsuits specifically aimed at her. It was a super stressful period. I'd spend a few hours each day with her very young daughter, and both my friend and I decided to block all internet access for the child, along with any content not meant for young children, including TV and movies. She grew up without exposure to outside media because it just wasn't good for her young mind and delicate nature at that age.
About a year later, I was picking her up from her very posh school, and all the parents were waiting for their children. One parent mentioned how exceptionally well-behaved and pleasant the child was. When I simply said it was down to her mother's parenting, everyone was eager to hear more. I explained that the child never had access to content inappropriate for her age, that might give her bad ideas, or unrestricted internet access, and so on.
Now she's 13 and attends one of the most prestigious schools in the country. Her behaviour is still excellent. And surprisingly, I discovered that the school itself doesn't give the children internet access. They have their own controlled online environment, which is essentially focused on schoolwork. And all the children there are amazing and well-behaved.
Looking back over the years, when I see kids who become 'problematic,' it's usually the same story: they either come from a challenging home environment or they've been allowed access to music, movies, and the internet from a young age that's meant for adults over 18. It's important to remember that once something is broken, it's hard to fix.
Another example:
A friend was managing a UHNWI household with three kids. The 8-year-old girl was acting really out of line – twerking like a ghetto thug, dropping F-bombs, and even using the N-word at school. It was pretty bad to witness. It was obvious she was watching music videos with explicit content. My friend was at her breaking point; the child was constantly rude and disobedient. I suggested she take away all her devices and internet access, and really stick to her guns about making the child follow directions, do her chores, and behave. At first, it led to a ton of crying, yelling, and fights. My friend held her ground, but the parents, who were generally nice but made poor decisions, would always give in and let the child have her devices back as soon as they got home. Eventually, though, my friend's persistence paid off, and the parents started limiting the child's access, which did start to lead to better behavior.
So, parents who let their kids have access to adult-oriented phones, internet, and TV are going to face the fallout from that. Some people might not agree with me, and that's totally fine. People are allowed to have their own views, but I'm really firm on this point.