Sober people sometimes cause car crashes, but that in itself is a pretty poor reason to permit drunk driving.
I'll also point out that simply driving under the influence is a crime, even if you don't actually cause an accident. The statistical propensity of impaired drivers to cause accidents is sufficient cause to imprison people for this sort of thing.
I'll also point out that simply driving under the influence is a crime, even if you don't actually cause an accident. The statistical propensity of impaired drivers to cause accidents is sufficient cause to imprison people for this sort of thing.