Also GA is, in the end, a relatively small-scale activity, so leaded avgas isn't much of a public health hazard like leaded automotive gas was back in the day.

Also GA is, in the end, a relatively small-scale activity, so leaded avgas isn't much of a public health hazard like leaded automotive gas was back in the day. More of an occupational hazard for people working on and flying those planes, and higher maintenance requirement on the engines. Hopefully they can manage to roll out G100UL at scale so 100LL can finally die. And then that final TEL plant on the planet can be shut down for good.