Are grocery bags banned?

Excuse me, could you please clarify for me? I'm curious about the recent topic of grocery bags being banned. Is this a new policy that's been implemented in some areas, or is it just a rumor? If it's true, could you tell me which regions or countries are enforcing this ban? Are there any specific reasons behind this decision, such as environmental concerns or waste reduction measures? Additionally, are there any alternatives being offered to shoppers as a replacement for plastic bags? Thank you for your time and consideration.