The Internet is demonic but at the same time you can't expect to keep kids off when all their friends are on it. I'm lucky that my kid is in a tight knit school where all the parents know each other so I've been meaning to make a class pact to do no smartphones until 7th grade or something. It only takes one.
I honestly think the majority of people don't fully comprehend what they're fucking with when it comes to this stuff, social media in particular. The fact that most of these kids will end up face id'ed in a database before they reach the age of consent is horrifying. Let alone the addiction potential, higher value activities bypassed for mindless scrolling, cyberbullying and like legit stranger danger.
I will probably end up getting a desktop PC in the living room for research and homework assignments etc. but when it comes to carrying a computer around in your pocket the bad outweighs the good.