Earlier quoted context omitted.
The interior doors in most houses that I have seen have wooden frames in which it is very easy to make holes for passing cables. Some newer houses might have door frames made of plastic or metal, instead of wood, but even in such cases it is much easier to make a clean hole through the door frame, instead of through a wall. I have made many such holes in door frames for passing Ethernet cables or TV coaxial cables. W…
Why would you prefer to make a hole in your doorframe rather than the wall? Sheetrock is so much easier to deal with. But perhaps you are referring to a concrete construction, which is uncommon in the US.
While common outside the US, most of it in newer constructions tends to be light concrete which is trivial to drill. But even 40MPa concrete is fine with an SDS, rent one if you don't wish to spend money on. In short drilling through outer walls is not difficult either.