Horses are also dangerous. A friend of mine lost almost all of their teeth because their horse kicked them in the face when they cleaned its hooves.
https://en.m.wikipedia.org/wiki/Great_horse_manure_crisis_of...
Not saying cars are great, but it was seen as the solution to exactly this problem
Horses need to be operated safely, just like cars, you need to learn how to ride them. Besides, if you can't ride a horse, sit in the carriage.
Over a million people die every year in automobile related accidents.