I wish I could upvote this comment harder. I started having unsupervised internet access (with the family computer in the living room) when I was 8. I'm a functional and successful adult because I trusted my parents. When my mother forbade me from registering on online forums I complied. When I read "fellation" in some minecraft chat (albeit somewhat later) I asked my mom what it was and understood that "sex" was something for the grown-ups and that I shouldn't worry about it. All because I would never even conceive that my parents wouldn't do what's best for me, and was unconditionally loved (even though I didn't know about this concept).
I would rather have parenting licenses than online age verification
Yeah I'm not sure why the govt or any other 3rd party needs to get involved. If I don't want my kids to look at porno online I will educate them on porn. If I don't trust my kids to listen to me then I will install an open source monitoring software and educate them on trust.
Letting the govt dictate what is age restricted is an easy way for the govt to control speech and narrative. For example, children's books that feature LGBT characters are being reclassified as adult [1], thus requiring additional verification. If I do/don't want my kids to read LGBT books, it's my decision. The govt should not dictate that. What else will the govt reclassify? Anything involving people of color?
[1] https://www.ala.org/bbooks/book-ban-data