What a brilliant idea. Our phones can measure dB sound levels…respond with the same dB measured. Or even a little higher. But not just whatever we set our volume to the last time we set it…which quite often was in a different context. Because of course when do you change the volume? When it doesn’t suit your current context.I already have the family plan but something that comes to mind is Siri volume. If I am someplace I cannot interact with her loudly I might whisper a command but she replies at whatever volume my phone is at. Ha. I wish she could pick up on the volume at which I ask for something and reply with a similar level. Of course an off/on setting for those that dont want that.