Normal plastic bags are so thin and create hardly Any waste and many people reuse them. I use them to line my bins. So now will have to buy bin bags, that are usually thicker with more plastic.
These bags for life use a lot of plastic and I've seen study's that they waste far far more as they get grotty and people bin them after a dozen or so uses.
If they really wanted to make a change how about getting rid of all the plastic veg comes in or have a plastic bottle deposit scheme?
Its still all this stuff about a free bag if you buy raw fish or razor blades.
Attached a pic of my veg and all the plastic trays!