Summarizing only a tiny fraction of the complaints:

- Connecting can make devices do weird stuff (play default songs, etc.)

- Pairing multiple devices leads to unpredictable behavior (random switching, switching when you don't mean to)

- Can't connect multiple headsets to one device (why do my wife and I need to share earbuds watching a movie on a plane?)

- Can't connect multiple devices to one headset (why can't I listen to music on my computer but still get calls from my phone?)

- ...

Why don't we have something better already?

I'm sure the answer spans a number of different fields/challenges. Standardization, security, adoption, regulation. Are there ongoing efforts to create a new protocol that solves for the problems so apparent with Bluetooth? Are there specific (seemingly) insurmountable roadblocks to improving the status quo?

Asking from pure curiosity. And because I spent 5 minutes getting something to correctly pair this morning.