It’s wholly possible these people are not bothered by loud noises. I have neighbors and especially their kids seem to have no clue what an inside voice is, how far bass travels or how to walk down stairs. They shout, they blast music, they fall down stairs. If I did that as a kid, my dad would tell me to cut it out. And I think that’s the key difference. You’re either raised to be considerate of others, or you’re not. And if you’re the considerate type, most likely you’ll go out of your way because you don’t want them to be bothered by you while they might not even register if you happen to fall down the stairs or fire a cannon indoors. I used to be really careful with watching tv at certain hours, or announcing to my neighbors of I was going to have people over. It took me a while but I now don’t even really care if they hear me anymore. Because even if they do, it’s unlikely they’ll be bothered as much as I am when their preteen kids shout that they don’t want to go to bed at 10:30 PM when I’m trying to sleep.