How that would work? very easy, just as it does, i see its never been the case there but here you may find two cars at most for the average type of family... its quite expensive to buy a car and then to keep it, you know inurance and all that..., ill talk for Spain in this case but trust me that unless in a family both the father and the mother work so they need obviously two differents cars youll only see one per family, well there can be cases in where family with money can get two cars, one for long travels and another one as a daily driver ok, but honestly, two is the average nunmber in here, well, i wont count when you have other cars as hobbies, my aunt and uncle have four in total, but two of them are classics while the other two are one each.

And yes i do know you have seven cars how can i not by now? yet seven are too many, specially in your case in where most of them are on bad shape and two of them wont work