Hi @faustiantimes, thanks for clarifying what Portugal actually did.
If drugs usage is decriminalized but not legalized, many opportunities are missed - such as quality control and transferring revenue from criminal to legal (taxable) flows.
It is interesting to note that, while drugs usage is more easily decriminalized than drug trading, the situation with prostitution is often the opposite - in some countries it is illegal to use prostitution while it is not illegal to offer it.