Countries that do not follow it could in theory be BGP filtered or sanctioned. I doubt that would happen. Probably more like the country would be added to par

Countries that do not follow it could in theory be BGP filtered or sanctioned. I doubt that would happen. Probably more like the country would be added to parental controls in the browsers and parents could de-select a checkbox that is checked by default saying to block that country. If that were a thing I think some people would be enabling parental controls on themselves just to filter out some shenanigans.