It's all about privacy.
I am amazed at services offered that run rampant in the home.
My ISP offers fiber. But only if you also sign up for managed wifi where they manage your internal net....no way
I got a quote for solar power....but they must use a 3rd party cloud to manage your power and it uses eth over electrical .... If you use eth over electrical already, then it does whatever it wants in your home network ....no way.
Cell phones? They all go into a guest wifi....not on my home network.