So I guess in 10 or so years whoever doesn't submit their ID card to every online service in existence will not be able to do much of anything online.
For example, discussions about recent killings by ICE in the US. This example is one where I really don't want to tie my real life ID to my online presence for fear of retribution if I ever feel confident to travel to there again.
Yet in practice, yeah, it'll be the death of anonymity. To allow ZKPs to take off would be letting a good panic go to waste, right? /s
While I believe the genesis of this age limit push is a good old fashioned moral panic, it's also obvious that the usual enemies of free speech are salivating at using this panic as a pretext to ban anonymity on the internet.