[bryanlarsen]

The cheap $20 versions of those things have awful wheels and are pretty much unusable anywhere that has weather or uneven pavement. I had one and never used it. But then I started using a $500 baby stroller. Of course at first I only did it including a baby, but once the baby got too big for the stroller I kept using the stroller for groceries because it worked well. Eventually I replaced the baby stroller with a "garden wagon". https://www.google.com/search?q=garden+wagon

[em-bee]

in any sufficiently developed place those shopping carts are good enough. my grandmother had one with three wheels on each side connected to a central axis allowing her to pull it up on stairs with much less effort. as a kid i found that fascinating.

[bryanlarsen]

Mine sucked at curbs. It worked, so probably "good enough". It was just annoying and I preferred to just carry my groceries before the baby and their stroller arrived. But if your grandma was handling stairs with hers, curbs likely wouldn't have been an issue.