Note that you can put it into backpack or use something like https://duckduckgo.com/?q=wozek+na+zakupy&t=ffab&iar=images&... (sorry, not sure how it is called in English).
PS Unless they have serious medical issues, far worse than typical. Or they are really old or really young. But in such cases they likely should not drive anyway.
What are you, a granny? It is not strenuous or difficult at all.
It's no wonder the US has such a high obesity and diabetes rate, with a sedentary society like that.
With something like https://duckduckgo.com/?q=wozek+na+zakupy&t=ffab&iar=images&... it is even simpler - my 80 years old grandmother is using it for shopping.
> your only sport ever is carrying groceries. What a poor life
Just how much stuff you buy? Maybe you live in awful city with shops more than 500m away from your home?