The authors think reusing a cotton bag for 173 times is difficult - that's all we need to say about this article. When recommendation for landfilling comes from this kind of sources, I think we can safely assume we are doing absolutely great with our demands to reuse, repair and recycle!

I imagine part of what makes it difficult is that people can and do reuse plastic bags. If I reuse a plastic bag 20 times before it breaks then you now have to reuse your cotton bag 3460 times, which is much harder.

One argument for PET packaging bans is that there are people for whom the discipline of disposal is hard. If it's true, than re-using cotton bags for 173 times is hard - on average level, not for you personally.

I think it's beyond many people. A typical pattern is that you forget your bag at home and end up buying another one. After this happens a few times you now have an excess of reusable bags such that you will never recoup the "173 times" on all of them.