There are a lot of things on the web that parents might not want their kids to see, and managing all the tools does suck.
I think blocking everything and requiring an allow list is a little over the top - wouldn’t it be better to educate your children or spend time with them while they are using their devices?
I worry that the second kids are no longer bound by this, they will go crazy and do whatever they want.
I enjoyed the business-related discussion near the end over the parental discussion.