Colorado just went to the fabric/ reusable bags only, instead of the plastic free ones. This happened in January.
This is costing the stores extra labor because people will forget their bags at home or leave them in their cars, then they take the entire buggy/cart/wagon to the parking lot to unload 6-10 items into their trunks. They leave their carts all over the parking lot. It's become a problem, because we are not used to it yet. I know all of this as fact because we have done it and see other people doing it. But I do return my cart to the appropriate place. I also grab a cart from the parking lot to go into the store, and sometimes that reminds me to grab the bags from the trunk as well.
When I remember, we take our Walmart bags we bought on Maui and Kauai into the regular grocery stores on purpose, just to indicate to the stores that we will not be buying their bags.
Colorado was sure to follow California with the grocery bags.
When we were in South Carolina, Rick started to grab one of our bags from the suitcase, and I told him that SC doesn't have those laws--yet.