Hearing loss can be subtle but is PERMANENT. There are other weapons that deliver incredible energy on the target with less noise and flash!
I find that electronic stereo hearing protectors are great - I can increase the volume to hear the slightest sound, but they still cut all sounds above 90 decibels ( even slamming a car door! ). I may not have time to put them on in a home emrgency, but I keep them beside my 4 magazine reloads just in case!
Yes, I know 4 Glock 17 round 9mm magazines are a bit much, but I ran out of ammo once during a particularly bad ambush, and vowed I would never run out of ammo again!