Sure, banning plastic bags means that there are less plastic bags. But that's a low bar to meet to call the result a success.

For example, did the ban reduce the total amount of plastic produced? Plausibly, no it did not.

From the report: > Because of the loophole in California’s bag ban allowing the use of thicker plastic bags, the amount of plastic bags discarded per person (by weight) actually increased in the years after the implementation of the ban.

Did the ban on plastic make a meaningful reduction in co2 emissions? Did it make people happier? Did it make a meaningful improvement to the environment?