RF: "That said, passengers don't go through HUET training, do they ?"
My point exactly re "public transport". However I come from the school of "humans only designed for 8mph on land". Anything else is a personal risk and entirely up to that person. So long as the risks are explained to them.
Look at the total amount of pax on NY scenic flights vs. the number of incidents.
Proportionate should be the response by authorities and politicians. After all, we are talking about a country which allows its folk to carry arms.