You can really damage your hearing listening to music that loud. I honestly don't think they really want to listen to their music that loud, they for some reason want the attention it brings.
So I have a "boomin' system" in my ride. I sometimes don't realize how loud it is, when I'm out and about. But I do turn it down in MY neighborhood. Don't want to scare some of my neighbors with my gansta' ass beats. Mrs HCP will say, "I heard you bumpin when you came up the driveway. You DO realize you aren't 22 anymore right?" Then when she borrows my ride to go to the gym, I love it. I hop in my car and the volume is SUPER loud. HA! The only thing that bugs me around my hood is when people drive fast down our street when the little kids are out playing. I've stepped out in front of cars to let them know that shit isn't working around here.
We had that same problem with a loud music fast driving idiot. One very irate dad took action. First the dad tried to talk to the fast driver, but the asshole only laughed and drove faster through the kids. Our street is a popular playground for local young kids because it is a dead end street. The fast driver was renting a home on the end of the dead end. He endangered the kids lives daily. Finally the irate dad had enough and waited for the fast driver. The dad threw a brick through the fast driver’s windshield. The driver tucked tail and ran for home. The dad called the police on himself. He gave a statement as to what he did, and why. The police went to the end of the street to the fast driver’s house, found his car with the busted windshield. Then the police talked to the fast driver. End of story. The police took the fast driver to jail. He had a ton of outstanding warrants. The police came back and thanked the dad for his help. That was 3 decades ago, when good olde boy justice was the norm. Today, the dad would be the one that went to jail. Times have changed, the bad guys and assholes now have all of the protection, and good family folks suffer for it.
I was thinking GOOD but you'll go to jail, then I saw when. I'd have just whooped his ass with no witnesses around. Today my only worry would be cameras. My white trash neighbor I had when the market tanked was great at the time. He'd run squatters off at gunpoint from the empty house between us.