If you read it slowly, as if you were struggling, they'd be shamed and bullied for mentioning it. lol. But I agree. On flights, people are explicitly told they need to use headphones, and still need to be called out. They're so used to existing in a bubble of electronic sound, all those beeps and blips don't even register anymore. My husband was reprimanded for making notes on his phone during a presentation, because he was not aware that the keystrokes made loud clicking noises. He'd completely stopped hearing them.