As a European it feels so surreal reading the stories of Americans not returning the shopping carts
In Norway, the trolley coined gained popularity as society went mostly cashless, yet the trolleys demanded their token. An earlier factor was that it was annoying to make sure you always had a coin of the correct denomination (physical size). Trolley coins can be part of your keychain, or won’t be accidentally used to buy a newspaper before going to the grocery store.
Most people still return the trolley and slide it in, like civilized humans should