Human: Is it okay to use a reusable shopping bag instead of a plastic bag when I go to the grocery store? Assistant: 
It is definitely better to use a reusable shopping bag than a plastic one. Reusable bags are more eco-friendly and help reduce pollution, as they don't end up in landfills or oceans. They can also be used for many other things besides groceries, such as carrying items from the car to your home.