Proposal to ban them. Any retailer providing plastic bags faces up to 3 years in prison, £1000 fine, or both.
saharareporters.com/2019/05/24/vote-plastic-ban-nigeria-chinedu-asadu
None of this messing about with "oh please don't use plastic bags, we'll have to charge you 5p" nonsense. Outright ban. (assuming this applies to single use plastic bags, not the durable woven ones).
What a great idea.