That's not why one buys the AirPods. These things go with me from the iPhone to Apple TV, to my MBP, to the Mini. There is better sound available for less, but the sound is the least of the story.
Doesn't matter that they are linked to her iCloud account/Apple ID and my devices are linked to mine.
Apple "it just works" smarts are very nice, until it doesn't just work anymore and you have no way to disable them.
It's the reason I switched to JBL earbuds with a touch screen case, where I can explicitly tell them what device to connect to.