Dad used to lose patience when I would stop and put my hands over my ears as he ran the chainsaw and belt sander. My older brother did not "need" these things. Then when we were teenagers, we used hearing muffs to go to the range. Dad got them for both of us boys, and himself. When the sound-blocking electronic muffs came out, and the prices became reasonable, Dad got some of them, and we could carry on a conversation at the range. They actually helped Dad's hearing in those circumstances.
He gave me a pair about ten years before he died. I burned up the electronics by using "heavy duty" nine-volts instead of standard batteries. I still have them, and I used them when working on church work projects, around loud equipment, and later as a drywall helper. What's amazing is, I could still hear conversation through them at these worksites, because all the other guys are either ridiculing the muffs, or hollering at each other...