There are some showstoppers here, though. You have to either:

A) Change the laws in all countries (a non-starter), or B) Restrict access to only countries that obey those laws

And Option B is a non-starter to the freedom crowd.

Not to mention all the other issues with labeling, such as:

A) How to label in an internationally-agreeable way B) How to prevent abusive mislabeling

It's fraught, this path.

V-Chip all over again. Now with mandatory browser extensions which hook into the OS' parental controls.

It's no better.