I'd say it's more than not needing a blue tooth jacket (which, to be sure, is highly unnecessary), it's giving control to someone else for the sake of convenience.

There is literally no technical reason that a phone needs to be locked to a carrier, or that installing a new OS isn't as easy as on a PC. But we accept these always connected, always physically present, devices instead of demanding to be able to swap out parts ourselves. We accept paying hundreds of dollars for something with which we could be charged for "jailbreaking" if we try to put our own software on.

A bluetooth jacket would be fine if we could simply buy a generic bluetooth kit and hook it up to our phones ourself, but allowing big tech to monopolize it means they own it while we pay for it.