[aleph_minus_one]

> Imagine a transportation technology that killed orders of magnitude more of people every week. That's the reality if you just magically s/car/jetpack/g for everyone.

Where is the problem: those people who don't have this risk affinity don't need to buy/use a jetpack. Similarly, not everybody should go ice climbing or BASE jumping. Thus I see no reason to outlaw jetpacks just because of their danger.

[TeMPOraL]

They're not outlawed per se. They just don't make sense at the intersection of economics and safety regulation, which is why you don't see them outside some experimental work.