[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.