[TeMPOraL]

It's painful to add wiring to a house as a random normie user. It's not painful if you're an installer or a construction person.

Or at least this is my understanding why all construction is still done in a way that makes it near-impossible for the user/dweller to change anything without having to do general renovation of half the place. Which, again, is hard primarily because it makes no sense to buy all the hardware that makes such work easy for a single job.

[IshKebab]

It is still painful if you're an installer. You have to chase walls, pull up carpets and floorboards, install trunking etc.

Why on earth would you do that when you can just use wireless? It would make zero sense.