Absolutely believe in freedom of choice. O think the key word in your sentence is peacefully and that works both ways. So the decision to smoke cannabis shouldn't have an impact on others. Unfortunately it can have an impact on mental health services, the police and excessive use can cause anti social behaviour. That being said a majority of people who choose to use cannabis do so responsibly and it is, like many other things, the irresponsible minority who create negative societal opiniom for the majority.
I am all for the freedom of choice.... I'm just on the fence about legalisation and whether it can be proven the cause and effect of cannabis use and laziness. Xxx