Banning the bag. Just do it!

Nice posting in Sumptuous with an extract from Saturday's Guardian detailing how Rebecca Hosking became motivated to ban plastic bags after she'd seen how swallowing plastics had killed hundreds of birds and animals in the Pacific including many albatrosses she'd gone there to film. She returned home to Modbury, South Devon and in a few months got local shopkeepers to do away with plastic bags and find alternatives. She just did it. So why can't we just do it in the rest of UK?