Homes from a back few years old have cat5 ethernet wires from wall plates to the irrigation control panel box. Typically blue color wires. In many homes, these are terminated on a thing called a punch block. All lines are connected in parallel. The intention was for wired telephones. To use that for internet, need to rip out the punch block and replace it with properly terminated wires, and (depending on your needs) an internet switch.
Smart? Nope.
Wires where you need them? Not likely.
Not sure if TV building dept ever updated to modern times with that stuff. Should be a flex conduit run to every wall box. Routed all the way to an interface box inside the air conditioned interior. A box on most walls in every room. Then we can pull any wire type needed. Ethernet, coax for CATV, coax for satellite, coax for tv antenna.
Several more in lanai, garage, attic, roof eaves, and exterior walls of house. Above kitchen cabinets too, with an unswitched power outlet nearby.
Speaker wires in living room ceiling for surround sound would be nice.
All of this would be a couple hundred dollars when building the house. Once the walls are up, it costs a lot more.
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