"Legalization" is a lie, unfortunately. Nobody wants to hear it, but I was there, I was part of the entire process here in Canada, as a Vancouver-based cannabis activist for 10 years. Legalization is code for government monopolization and control. It's literally a trap for eager, well-meaning, and foolish citizens. They started in Canada about 20 years ago with medical exemptions, and finally captured the trillion dollar market fully in 2018.
I even made a documentary about it, and warned that it would be tried in places like New Zealand next, and that the Kiwis too would fall for it.
What we want is called decriminalization, nothing more and nothing less. If we don't get 100% decrim, or if anything else comes along with it (like limits on private gardens), then it's just 1 step forward and 3 steps back. It's tyranny with a tiny of bit partial freedom, to make it palatable.
Please, do NOT "legalize" cannabis in my home country of New Zealand! : (