I can see how these sound very attractive (particularly to a 14 year old). But we really need to make cities and city transportation better so these kind of vehicles aren't needed.
Cities should subsidise these services, or at the least not charge sales tax on them.
Marketing it as a city vehicle, especially in dense Paris, seems strange to me. The only people who are going to be attracted to it in that setting are those who really hate public transport.
Many cities lack appropriate and affordable public transportation and force folks to buy a car. If you live in a town large enough to have shopping centers and you work in that same town, this car would fit well.
Unfortunately, living in a rural area actually makes these cars more difficult, at least in some places in the US. There are roads you couldn't drive on due to speed, and your commute would be longer. Unfortunately, the roads you need to take are also the roads that get snow cleared less often and seem to have a higher rate of disrepair.
We don't own a car, and used to just get everything done by bike and public transport.
But we've stopped using public transport. We do more by bike now, and use car sharing wherever that would be impossible.
And then again, I'm always amused when visiting Americans think Dublin's awful public transport is good :)
Under EU regulation these count as light vehicles (class L; Mopeds, Motorcycles, Motor Tricycles and Quadricycles - L6 to be specific), not cars.
You need a class-B driving licence to operate cars (i.e. age 17+), but these vehicles can be operated with a class AM license (i.e. age 14+).