I work in tech, but heavily intersecting with other industries (my DH is the tech fanatic and I’m more the creative industries one) and this is well known in the industry. We and many others heavily restrict access to devices, despite working on the ‘cutting edge’ of the technology sector. People are often surprised to find out the boundaries we have with technology for our children, but a lot comes from understanding the development and design of certain technology and how it could be misused or impact young brains differently. Equally, there’s a level of logic with overuse or type of use. If a baby is distracted by television while you change the nappy, it takes away from the parent-child engagement and also from the baby processing sensory things and putting that into language (eg. “I’m sorry, little one, was that wipe a bit cold?”).
For older children, it’s quite scary for parents to think about what they can access. It’s not a new issue - we had pro-anorexia sites and very dark material online in my generation - but the huge accessibility and the fact access is often alone in the teen’s bedroom is a new issue. We’ve already decided on basic phones without internet as the first phone and I don’t think I’ll rethink that until much older. We also have a family rule that all technology in the house can be checked by parents and will have limits and parental controls on.
Even things like Google weren’t designed for children - for example, the connotation of certain phrases that might sound funny or literal to a child, but to an adult may have a different meaning.
It’s very possible to restrict use in the majority of cases, but it’s not always easy and it can be very hard when those rules aren’t in place from early on. We saw plenty of post COVID mumsnet posts asking for help reducing screen time as rules had become lax, going back from that point is tough, but imo it’s one of the best things you can do for your children’s development.
Edit to add: I agree too much technology in schools is an issue, even just down to less ability to memorise facts and less sensory input.