I definitely think that driving high is a big issue, but can I ask what reasons you have against medical use besides driving? In my case, I use it medicinally and I don't have a car, so my chances of driving high are 0.
I don't know, I just prefer to stay away from it, that's all. I guess I've just heard and have seen too many bad things about it. If other people want to use it, then that's fine.