Is there anything blocking the rest of EU from legalizing cannabis in this manner, aside from internal (national) politics? Whenever this topic comes up in our country, it's always met with opposition claiming that it would be against the EU regulations, or international treaties, or some other external blocker that we can't control.
These reasons sound like a stall tactic given that a few EU countries have managed legalization thus far, but I'm not familiar with the relevant laws. Do they have any legitimacy to them?