You could just rip out the age verification bits, you have root access, it shouldnt be that hard. If it ever happens

https://en.wikipedia.org/wiki/Bootable_business_card and LNX-BBC or the more recent damn small Linux

The amount of stuff that supports ipv6 is huge, however as most ISPs still don’t know how or want to know how to support that would be the problem. So the internet would be fine apart from a couple of sites, but I’d guess 50-80% of home/business connections would fail.

However most mobile carriers are ipv6 native or close to it, so everyone can get on Facebook and tiktok