In the Eastern US there are a lot of brick homes with drywall interiors. In my home there some walls with only a few centimeters between the brick and the drywa

In the Eastern US there are a lot of brick homes with drywall interiors. In my home there some walls with only a few centimeters between the brick and the drywall and in other places there is a full stud between the brick and the drywall. Even though this is not required (i.e. many offices are all sinter block or brick), this allows for easy finish electrical and the rest of the US building industry to be easily integrated into the building. For another contrasting example, I have a friend that moved to Germany and found out, like many Americans that have moved there, that you need a totally different skillset to install things into the wall. It's very common in Berlin to live in apartments where the walls are made of concrete. I helped her install a few light fixtures on a visit and boy did I wish I was dealing with mudded brick or drywall.