alt Hacker News> And, in the end, prohibition never works - bookies still and always will exist.
I don't think that's exactly true. Laws introduce varying degrees of friction for citizens to do something.
It's like entrepreneurship. If there are a bunch of laws in place making it hard to start a business, fewer people will start businesses. Some people will still create illegal businesses on the black market, but lots of law abiding citizens will just stop creating businesses because there's too much friction to bother.
That fails to acknowledge that a) the black market tends to be dramatically less safe b) it drives addicts underground where it's hard to identify and help them and c) the addicts this is meant to help will be disproportionately willing to participate in this new, much worse black market.
Bookies scale very well, a small number of them could serve whatever clientele is still interested.
It'll probably turn out similarly to drugs. Prohibition keeps your average citizen away, and makes the market much worse for anyone left in it.