this is amazing.
i know it's all but dead now, but TV used to be a big part of life for a lot of people. cable TV. kids could get exposed to adult content (no, not just porn but all sorts of things parents may not want to expose their kids to just yet) just by changing to the wrong channel.
the internet is still a thing, and image searching the wrong thing on google will show you all sorts of things you may not want your kids to see, safesearch or no.
it's not even like when i was young, and kids had to use a family computer out in a public room. everyone has a phone with an internet browser in their pocket.
these "protections" do nothing. it's just people who normally are aggressively "don't tell me how to raise my kids" failing to raise their kids and trying to force the government to set standards on how everyone raises their kids.
the only way to keep your child away from content you do not want them to see is for you to control your child's media intake. government regulation is no substitute for involved parenting.