I've 2 motorbikes, but still - grudgingly - find the car useful. I wouldnt have a 7 year old as a pillion, and wouldn't take Mrs D home from whatever nasty MS treatment shes endured this week on the back of a bike.
I don't enjoy driving, and try to minimise the amount of car use as much as possible. A micro car is that shady area between owning a conventional car and being a lazy arsed motorist driving everywhere for every tiny little thing, and not having a car at all. It's just enough car to get me there when I have to drive, and keep me warm and dry while doing so, without an extra tonne of unnecessary metal and the fuel consumption needed to lug it around.
It's that extra tonne that's helping to unnecessarily screw the planet, the resources required to build that extra tonne, the pollution created in moving it about, the destruction of our countryside making outsize parking spaces so wherever people go they have somewhere to park their extra tonne of tin, the list of consequences of the ever expanding waistline of the modern car is endless. The current VW Golf weighs double the original, the latest Focus RS weighs twice as much as an Escort Mexico of 48 years ago, pretty much ditto the Astra. Bigger, fatter, lazier, dirtier.