It's still creepy and weird to have a full conversation on a bluetooth headset in a public place where everyone can overhear your side of it.

Isn’t that the same without a headset?

Plus when you talk into a phone, your voice bouncing off the glass causes natural tendency to control vocal volume.

With buds, people just shout into the void... Or the bus...

Better than the people who walk around using speakerphone… which I see at least 3 people do on every trip to the grocery store.

It still seems weird to me when I hear people seemingly talking to themselves as if hallucinating. It always surprises me until I realize what's happening.

guess i'm old cuz i still feel like it's weird and antisocial

Surely you mean asocial?