The US is said to be the most powerful country in the world could not stop illegal drugs.
Other countries tried it but failed.

There's a saying that says, "If you can't beat them, join them."
I guess this is what most countries are doing about illegal drugs.
Those who are in illegal drugs, go on with your lives.
Those who don't, do with your lives as well.
Its what they call mutual respect.
Similar to prostitution.
In Singapore there is a place there that only for prostitutes and customers.