[dsr_]

Nobody needed laws about automobiles before they were invented, and it took quite a few years before those laws became settled and close to universal.

(E.g. every jurisdiction will require you to drive either on the left or the right side of the road, but they differ. Nearly all the world now uses red stop signs and lights.)

Laws change in response to technological changes; this is normal. The spirit of a law is often more important than the wording, in deciding what changes to the law are appropriate.

[scotty79]

Don't forget that laws about automobiles were shaped by years of intense lobbying and shaping public opinion with campaigns, all financed by car companies.