[adjkant]

And how often does the average person ride in one of those?

[nradov]

Anyone who can scrape together a few hundred dollars can take a short helicopter tour ride. It's pretty common in tourist areas.

[jra_samba]

Yes, but they are in the helicopter, so won't want to blow it up.

The killer combination is self-flying cars (which as I said will be a prerequisite for mass adoption). No one needs ride it for it to be a weapon, unlike a helicopter.