There are just a lot of similar risks like these in life. Camp in the wrong place for example and you might lose the ability to eat red meat [1].
I think it's irresponsible to tell people to take this or that drug since we still don't have good numbers on the risks. But I also think telling people to completely abstain is dumb, and the government trying to enforce complete abstinence even more dumb.
More importantly, driving a car gets me where I want to be, not just triggers an unexpected condition bug in my brain.