Doesn’t this approach risk promoting elitism by wealth? Past a given income level that fixed overhead becomes irrelevant.

So those on a lower income, who are more cost-sensitive, are made to be more responsible for reaching pollution-limiting targets than the wealthy.

I would have thought so too, anytime I’ve been shopping though, but the amount of people that pay for bags is ridiculous. Especially the ‘lower income’ shoppers. You would think they would be more careful. Another example is that I used to live in an area where a lot of the residents were on benefits. On bin day (or any other day come to think of it) there were always lots of Lidl/Asda/Aldi/Tesco bags outside or by the bins. Lots of takeaway pizza boxes, bottled water etc. as well. I was in full time work and I couldn’t (and wouldn’t) spend money on bags etc.

There was a Waitrose on my way into work that I’d pop into now and again - the hoorays in there tended to use more of their own bags than those I’d see in Lidl. OK they were fancy Waitrose ones to sit in the back of the Range Rover but they would use more of their own than ‘shop ones’.

Make the bags £2.50 each or better still make them paper again.