We made the change because we were tired of the bag boys putting three items in a bag and we having to tote 15 bags out to the car and watch everything flop out of said bags before we got home.
There are a lot better uses for the plastic.
That's true, oil is too expensive to waste on grocery bags.
The last time we bought groceries at Wallyworld,we bought a insulated reusable bag to use. We put it in front of the groceries so it could be scanned & then used, but the twit running the cashier started to fold it up & put it in a plastic bag. She then ask if we wanted everything in the bag. I told her I didn't think everything would fit in there but most of our cold stuff would.
That's true, oil is too expensive to waste on grocery bags.
Plastic grocery bags are actually made from ethane, a waste product that's removed from natural gas in order to lower its BTUs to acceptable levels.