Re looking silly, I am not so sure. Only 10 years ago no one would have expected adults to proudly navigate the city on flashy colored elwctric kick scooters, and yet look at any big (european?) city nowadays. Even investment bankers in tailor-made suits move on those abominations as if it was the next lamborghini.

I actually find them quite attractive as a means to access my local train station: easier to take with me than a bike or kick scooter, apparently much safer than rollerblades or skateboard. Just not for that price, but let's give it a few years to see if it takes on.