Have you been to Germany?
I go to Germany on biz about 4 times a year. And a shit load of other places in Europe and Asia.
The "be like Europe" idea is silly. On one hand I like the cafe's, bakeries, preservation of historic places, etc. On the other hand the hotels have rooms the size of closets, traffic congestion is as bad or worse than any US city, people smoke like chimneys, taxes are ridiculous, etc.
The idea of eliminating plastic bags is reasonable since they end up in landfills or on the ground anyways. But a voluntary effort is far better than a coerced one. My local grocery store sells grocery bags made of cloth for $1 and I use them. But to each his own. California is a freaking socialist mess and the number of residents fleeing there is huge. All that will be left are illegals and leftists soon. They can have it.