[PPGMD]

Headlamps and helmet lights are never meant to be used in a combat context, they are almost exclusively utility lights. The only exception are IR lights meant to be used with NVDs.

And TBH I think everyone needs one, sure you might not need a super bright one, or even a super durable one like a Surefire, but I am sure everyone can think of a time when you need light while both hands are busy. I personally used my headlamp a lot in preparation for Hurricane Irma, and for the few hours that my lights were off.