I don't see how one can come to this conclusion.

You can easily use prosumer routers/firewalls and other parental devices to block content you don't want. Millions of solutions exists and its trivial.

If you don't have the options in your router or OS level settings, you can 100% change the DNS server to Cloudflare's Family DNS, or a number of other family DNS solutions, many of which are offered for free.

You don't have to give your kid everything or nothing. You just have refused to look at the options. This is HN, we should be making tech for our families, investigating solutions!