I would say, that's because a few people ride them like they are super badass, blasting loud shitty music and going at indecent speed on the sidewalk (which is

I would say, that's because a few people ride them like they are super badass, blasting loud shitty music and going at indecent speed on the sidewalk (which is totally not badass). The one in the article are limited to 15mph, a colleague of mine rides one limited to 60km/h (37mph).