Why should or shouldn't cars be banned from the city centre?

Cars have been the worlds most efficient way of transport since they have been invented. I assume that this question is considering banning the cars because of the accidents they have been involved in. However, accidents that are car related have been caused by more than 90% by humans, through either fatigue, bad driving skills, drink driving, speeding, or distractions in general. Only 10% of accidents that cars have been involved in are caused by mechanical failures. Therefore, cars should not be banned but more or less people should be banned from driving them.

Hope this helps and makes sense to you.