I can understand why governments would push for something like this after 9/11, though it of course goes without saying that this is a totally unacceptable violation of someone’s basic rights. It also goes without saying that governments always want more control over their citizens, but what exactly are they so worried might happen, right now, in 2025 or the near future?
The USA will go to war with China to keep them in line. My assumption is that like Afghanistan it will be presented as an attack on NATO so the EU will be involved.
People may question the validity of that war which is ok as long as the sentiment doesn’t spread. With age verification those critical voices can be silenced easily.