Sure, no child that age needs a smartphone or internet access in their room. That doesn't mean they absolutely shouldn't get them, depending on circumstances.
Of course. Every child is different, and every parent has their own ideas about how best to raise their kids. I am strongly of the view that this is one of the most fundamental freedoms any parent should enjoy, and that interfering with a parent-child relationship is fundamentally a damaging act that is justified only in cases of serious neglect or abuse.
IMNSHO, there is way too much nanny state behaviour in the world today, and certain people and organisations are far too judgemental about how loving and generally competent parents raise their kids. This is true even though actually the critics are frequently lacking in robust or long-standing evidence of their preferred methods' superiority anyway.
You seem to be projecting your own ideas on how the rest of us should raise our kids, in a way typical of non-parents.
On the contrary. As far as I can tell, it's mostly a certain type of parent who is advocating all these censorship measures. Also as far as I can tell, it is those same parents who want the rest of the world to change how it works (including but not limited to how it raises its kids) to meet their own preferences.
Personally, I'm just a guy on the Internet pointing out that if those parents don't like this particular aspect of the real world or can't effectively support their children in this respect, there are reasonable alternatives they can choose that will dramatically reduce their own children's exposure to any actual or feared damage that might otherwise result.
I am all for society as a whole making reasonable allowances for the practicalities of parenting. I have nothing against giving parents options and/or information or other points of view that they can consider when making their decisions. But these are very different things to saying parents should or must follow "best practices" according to some dogmatic authority that may or may not have any idea of what is really best for the children anyway.