Is it normal that hearing is the one sense people do not mind offending?
NObody wants to offend others' smell or taste. No one wants to stink or have anything they own smell bad, and no one wants to their cooking or body to taste bad (like intimacy)
No one really wants to look bad either in style nor actions.
Touch is another one, inappropriate sexual or violent contact are usually avoided, in part because it can bring legal consequences.
BUT - people do not seem to mind being offensive to the ears. Loud cars, hate speech, annoying ring tones, or my least favorite - people who put their dogs out around 5 in the morning to bark like hell.
Why is it that with the other four senses, people try to have some kind of manners but with hearing, all that goes out the window? Let's face it, annoying sounds are often the hardest to escape. Is that why people enjoy making offensive noise?