Not sure if this is a joke. For years my phone was the only one paired with the Bluetooth on my wife’s car as I like to play music when I drive it but she couldn’t be bothered to mess with it and listens to the radio. That doesn’t mean that I am usually the driver in the car though as she usually drives it. It was paired for the few times she wasn’t in the car and I had to use it.
I don’t “want” my backhaul going over WiFi but I’m in a house where it is quite challenging to run Ethernet cable. It’s on the list to get to but it’s a big project. In the meantime I have a functioning network. People have different situations that call for different tools.