when I was a kid in the early 90's, my state (and many others) banned cigarette vending machines since there was no way to prevent them being used by minors, unless they were inside a bar, where minors were already not allowed.
The problem is, doing the analogous action with the entire internet is a privacy nightmare. You didn't have to tell 7-11 every item you bought at every store in the past 2 years and opt-in to telling them what other stores you go to for the next 5.
There is no digital equivalent of "flash an ID card and be done with it" in the surveillance state era of the internet. Using a CC is the closest we have and even then you're giving data away.
The problem is, doing the analogous action with the entire internet is a privacy nightmare. You didn't have to tell 7-11 every item you bought at every store in the past 2 years and opt-in to telling them what other stores you go to for the next 5.
There is no digital equivalent of "flash an ID card and be done with it" in the surveillance state era of the internet. Using a CC is the closest we have and even then you're giving data away.