I don't imagine a person with any consideration for others would be the type to do something like this. It very much reminds me of people from the Google glass era.

> no one else has said anything or appeared to notice.

Oh buddy, they noticed. Nobody's missing that thing on someone's face in the close quarters of a commercial airline.

I wonder if they made him take it off for takeoff and landing.

Oh wow, there’s an annoyance I had not even considered. The passenger in the seat next to you endlessly jerking their head around with a big headset in your peripheral vision while you’re trying to relax or work or read a book.

Infuriating.