To be honest it's a shame they can't find some compromise to allow this type of new tech in a safe way here, We do seem to be a bit killjoy in the UK, even kids of 3 or 4 years of age was once being pulled up for riding their electric 2 mph toy cars or motor bikes on the kerb, even though the parents were in control.
In the centre of London, where the streets are narrow, the crowds are huge, people walk about staring into their phones, walking into roads with headphones on, no-parking stumps making the already narrow sidewalks narrower (along with parking metres, parking sign posts, shop advert bill boards), cracked pavements, and people going for a lunch time jog,meandering in and out of peoples ways, nodoubt cursing them as they run... Now we're saying kids can't enjoy a little fun?
On my commute to work, I see someone using a segway to get to work. No doubt he thinks the traffic isn't moving anywhere, the subway is an overcrowded armpit sniffing joke, the buses are stuck in aforementioned traffic.
Sometimes I wish the law wasn't so restrictive and allow the progress of society to continue at a slightly faster pace. I guess it might be due to a safety issue, but in the grand scheme of things, I can't see why segway-like devices are considered a problem.