It doesn't really matter if they work when they're ballot box poison for anyone who implements them. In western Canada there are large groups of people who are absolutely wildly outraged about plastic bag and cutlery bans. They're a constant refrain in the right wing rage farming ecosphere here, because you're exposed to the (very, very mild) negative effects of the ban almost daily, but never to the positive outcome. It's a very easy lever to pull if your goal is to paint any environmental or climate change action as pointless posturing, and it's being used as such.