One of the main advantages of living in a large metro city which are densely populated, is that there are usually a large number of shops near the home.
So a resident does not have to travel very far to get the daily essentials
In contrast, in smaller towns there are very few shops in the vicinity, especially in residential areas.
So for purchasing some essential items, like electrical items, a visitor has to walk a long distance or hire a vehicle.
If the visitor does not speak the local language the problem worsens.