I know for a fact that my hearing is not at one-hundred percent. I have been to way too many loud concerts without any ear protection. I simply believe it isn't hip to have earplugs in at concerts – I think everyone feels this way. Maybe stuffing your eardrum at concerts will become a fad, otherwise I'll stop being cool around 25 and start to plug it up.
There are some sounds that earplugs may not help: blue whales by chance. Blue whales are actually incredibly loud and are only quieter than some extreme natural disasters. Okay, I lied… Besides being softer than meteors, earthquakes and volcanos, blue whales are also pretty closed-mouthed when up against 2,000 pounds of TNT. Still, these whales are so loud I've been led to believe they can communicate between oceans, but don't quote me on that.
I do think it's funny that the loudest concerts in history were all by bands formed over 30 years ago. If someone tried to pull that in present day there would be a few thousand lawsuits for ear trouble arguing it is the band's responsibility to provide ear protection for the crowd– and you already know who would win.