Spoken like an introverted someone who HAS ALREADY been affected socially in a negative way by their cell phone use.

Can't disagree with this. I got a tablet when I was 8. With unrestricted access. On the positive note, it did help me learn quite a lot of stuff. Like English.

The entitled and bratty part of your comments = when people tell me not to use my phone I simply DONT use it or bring it. What’s the problem exactly? You want access to an encyclopedic knowledge in class? You don’t have a laptop or computer in the room you can use ?

No problem, really. If someone wanted to search up something during class, teachers could just allow it, and generally they did. Except when I was in grade 9 and the school decided to prohibit even just having them at school, as if it were grenades. Some teacher would always just collect all into a bucket and return at the end of the day.
When we had free substituted classes, sometimes they would tell us something like "Sorry, I'd allow you phones now, but if I did I could have problems from it." So clearly they would punish teachers for that. That's just crazy.
And computers aren't in every class. Even if they are, they might not always work. Now we use our phones even to do exams sometimes. But, yeah, school isn't even mandatory for me anymore, so it's already different.

Finally, I don’t trust kids to make life changing decisions. See all the high schoolers who got suckered into a worthless degree from the University of Phoenix. It’s very fair to take the reigns from people who can’t control themselves and their impulses.

I wasn't even talking about such late decisions. For example, when I was 10 I was given the decision between going into class A or class B since I had good enough results for A. A was class for a little more talented kids. They even had some additional subjects. Well, my dad discouraged me from going to class A. He told me "There won't be any normal kids. I'd choose B if I were you." So I did. I regret. I could have gotten to a better school later on.
Some explanation of those classes:
A - Talented
C and D - sport classes (basketball and hockey respectively)
B - everything else

Next, when I was 14, I told my psychologist about my living conditions. Including photos of how our home looks like. She told me that she could call social services. Then asked me if I agreed. I was scared, so I said no. I regret, once again.

And something that's there always, choosing high school when you're 15.
I am not sure how it works across different school systems. In Slovakia, they are focused just on 1 particular field of study determining where you'll be for the rest of your life. 3 year fields are without graduation (e.g.: various mechanics and plumbers). 4 year and 5 year fields are with graduation, meaning you can go to college/university.
I've had a few classmates who only chose particular field because their friends were going there too, even though they weren't interested in it.

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Oof, sorry. I got too much off topic.