We bought a home that had lots of cabling but it was very badly arranged and installed, lots of it just laying on suspended ceiling in the basement in random directions, so I ripped it all out and did my own. After four years I'm still working on things such as badly placed outlets and even light switches that require you to walk across a dark room to turn on the lights, so this is not just homeowner but also the builder. When we switched from cable to fiber optic the installer wanted to just drill a new hole through the siding into our home office. And the new cable laid on top of my lawn for nearly two months before they sent out a guy to bury it by hand.
We bought a home that had lots of cabling but it was very badly arranged and installed, lots of it just laying on suspended ceiling in the basement in random directions, so I ripped it all out and did my own. After four years I'm still working on things such as badly placed outlets and even light switches that require you to walk across a dark room to turn on the lights, so this is not just homeowner but also the builder. When we switched from cable to fiber optic the installer wanted to just drill a new hole through the siding into our home office. And the new cable laid on top of my lawn for nearly two months before they sent out a guy to bury it by hand.