A notable example is the approach to soft drugs in the Netherlands. Despite being illegal, the public prosecutor has chosen not to enforce the law. To the point that many if not most think they’re legal.
This situation presents a complex issue to me: it involves a small group of individuals (the prosecutor’s office) effectively deciding to disregard the broader democratic process and the will of the voters. When such things happen, I believe they should be rare, pragmatic and temporary.
What’s your view on the matter?
The law should be revoked. I would not assume that the legislature is more legitimate than the local prosecutor who decides not to enforce. Often this situation happens when the legislature is captured by special interests who are unconcerned with popular will (and the risk of resistance), or by a national government trying to micromanage local and personal affairs.