A drunk driver is already knowingly drunk and driving one+ ton of metal around at lethally high speeds. Many of these young people, possibly even the vast majority of them, are not knowingly infected, but being treated as if they were all contagious and thus uniformly the equivalents of drunk drivers. Moreover, this is being based on very questionable cause and effect speculation about how much damage said young people are causing in terms of contagion.

Your analogy is just bad. Closer would be banning all drivers between a certain age rubric because possibly, maybe, some of them will get drunk and drive.

If anybody proposed that, it would be rightly derided, but here with politically motivated COVID panic based on still poorly understood evidence is somehow making this absurd restriction seem okay to an awful lot of people right here on HN.