If a password is so precious that you share it plaintext with third parties it is a bad usecase for a password.
Treating the network as untrusted is good but as long as some people are paying for service, traffic and bandwidth there are reasons to not allow anything to use your network. And there is also a legal question of liability if someone is not quite above board from your IP.
I've had calls lasting over an hour helping customers configure their email on their phone and computer.
I learned not to laugh when people called "the internet" either "that e-thingy", "mozarella foxfire" or "googlé charome".
I dealt with explaining to people why IE6 did not understand SNI when we decided to give all our customers websites HTTPS.
Just saying that I've been in that and seen that.
But, that’s why I run my own router for internet access. It’s my router and I can control what it does. If it goes down, then that’s on me. And I’m okay with that. Would I necessarily want the same setup for my parents? Probably not…
Those who are security conscious enough to have concerns about their LAN security do not buy "internet + routers + desktop support as a service" by renting the endpoint equipment -- they buy just the internet connectivity and furnish equipment they can control and trust.
If you buy the equipment from Verizon, I will bet you a significant amount of money that it still sends your passwords to them [on edit: with exactly zero disclosure that's detectable to 99.99 percent of users]. In fact, I'll bet you Verizon treats customer-owned equipment exactly like rented equipment except in billing. But anyway.
> The people who would trust the ISP-owned device likely have already typed that wi-fi password into things like $99 smart TVs which probably transmit their wifi password, location, and microphone data directly to China. Verizon having the wifi password is not cause for concern here.
You park your car in bad neighborhoods. Had I not stolen your car, somebody else would have done it.