If cannabis would be legalized, the economy would benefit from it very much, if you could look at the trade of cannabis in the black market in a typical year, it is massive.
If cannabis were legalized, the war on drugs would be well on the way to winning, cannabis is probably the biggest used drug in the UK, so dealers would go out of business, no hostility when scoring a bag sounds good to me.
At the moment you can go to prison for 7 years just for having it, which I think is ridiculous, why can’t people just be left alone in the privacy of their own homes, they’re not hurting anyone, they’re not trying to cause any problems.
I would however put an age limit on it, it has been proved that schizophrenia is linked to cannabis use, but only when taken in heavy doses when the brain is not fully developed, with adults it’s fine.