I posted similarly on another of these threads:-
1 Is there measurable proof of harm to minors (and I don't mean anecdotes)?
2 How is this law intended to prevent the cause of the harm (if harm is provable)
3 Will this have the desired effect?
4 How are you going to measure the reduction (or the lack of it) in harm?
I've looked for info on points 1, 2 and 3. I can see what its proponents think is the answer to 2. To me, the jury seems firmly out on 1. As for 3, most of the sage voices seem to think it won't stop young people from finding whatever they are looking for on the internet.
And 4, I can't find a plan anywhere to do this.
Any of you well informed guys out there who can help with any of the above?
I'm not going to spend a lot of time going into academic studies relating to your number 1. But the jury isn't really out at all. The research will be increasing significantly in the post covid envrionment, but the impacts and demands on a range of services (education, health, police) is significant.
2. The solution makes much more sense if you view this as a public health issue. The counter arguments are actually remarkably similar too but carry a lot less weight when you view them in this light. "Kids can still buy booze if they get a false ID" "If you stop kids getting fags from the corner shop they'll endup going to the local drug dealer"
3. Not in every case, no. But it will have an effect. As ever, those who are determined to do something - they will find a way. Heck look at all of us here. But it may make the gateway for others more difficult or "normal" going forward. What will not be addressed directly on this will be where kids still get access to things via their parents accounts or usage. (the equivalent of taking a snifter from the decanter or nicking a fag out of the unattended box). Porn usage is so normalised in some domestic situations that it is mentioned specifically in safeguarding training as a form of abuse.
4. I'd expect there to be a lot of research done, its made for dissertations and doctorates.