Why does my high school disable the internet?

[Nahte]

So my high school is being ubreasonable, they block the internet!
There are a few sites on the internet that are open (school website, dictionary.com, and a couple others)

But youtube, facebook, twitter, tumblr, are all blocked. Any website that has any communication is blocked. Anything that has images is blocked. They even block SNAPCHAT! Idk how they do it, but if you try to snapchat on the schools wifi it wont let you.

Also they track everything you do on the school wifi. Every website, seach, everything.

Why do they do it? Why is it the schools concern what we do on OUR phones/ipads/laptops!?!?

It our stuff, we should be able to use them how we want! And i feel watched whever i use the internet, abd i feek unconfirtabe! I want pivacy!

We are going to get on facebook abd twitter at home, so why does the school not let us?!?!