In many European countries, single use plastic bags for groceries almost disappeared overnight after a flat tax of 10 cents was slapped on it, I think they used

In many European countries, single use plastic bags for groceries almost disappeared overnight after a flat tax of 10 cents was slapped on it, I think they used less than 50% in 1 year or something like that. The supermarket sold some sturdier and bigger bags for like 50 cents, who can be reused for years and they even replace it for you if the bag is ruined for some reason, but using this was socially frowned upon. After the tax, it is socially acceptable to reuse bags now. It is possible to change this on a society level, and the change can be vary fast on our current hyper-connected economy. A similar thing happened with lunches. Before 2008, people would never carried their own lunches from home, it was a total social faux-pa. The mix of economic downturn (even if the same people did not feel it), healthy lifestyles are trendy and the classic one-upmanship between who would bring the fanciest lunch lead to droves of people carrying their lunches on public transit almost overnight, special stores that sell thermos and special bags, and hundreds of cook books.