If you make speed easy to get: every eg junior doctor and every lorry driver will end up having to take it in order to compete.
And dope: the prozzers will all be forced to take it, and factory workers will all take it.

My vote is yes, for those over 18 years of age. I think all drugs should be available over the counter. Instead of creating black markets for drugs, why not have it open market and just propagandize the dangers?