>But I always wonder why don't you have more smaller supermarkets closer to where people lives, instead of larger ones that require so long trips.
It's a reasonable question but I don't really know the answer.
In the US you tend to have sort of a bifurcation between (a few) supermarket chains (possibly somewhat downscaled in an urban environment) and convenience stores/bodegas/small food departments in places like urban Targets that tend to have minimal produce etc. Whereas in someplace like London, you're have Tesco's and smaller Sainsbury's which are somewhat in-between. Certainly there are exceptions with various local markets/specialists but that's the general pattern one sees.
It's a reasonable question but I don't really know the answer.
In the US you tend to have sort of a bifurcation between (a few) supermarket chains (possibly somewhat downscaled in an urban environment) and convenience stores/bodegas/small food departments in places like urban Targets that tend to have minimal produce etc. Whereas in someplace like London, you're have Tesco's and smaller Sainsbury's which are somewhat in-between. Certainly there are exceptions with various local markets/specialists but that's the general pattern one sees.