Total decriminalization works beautifully in Portugal, for example.

An advantage is that it allows universities to do real research on the uses and abuses of these drugs, their short and long term effects, and possible treatments to deal with addiction.

Moreover, it allows for legal and easily accessible purity and concentration testing of even street-bought drugs, so one can use them, if they feel the need, without unknowingly risking their lives.

HOWEVER, such decriminalization MUST be accompanied by sufficient research and education so as to not create a wave of deaths. Given the recent drive for MAID in cuckistan, I highly doubt this will be the case. As usual, the population will pay a heavy price for political decisions.