Too many times I'm embarassed trying to show a video to someone in an open area where people are talking and I turn the volume all the way up and I see them put it up to their ear so they can hear it or start searching for the volume button.
There is a guy with an android phone probably half the price of mine at work and he plays videos and I can clearly hear it from ten feet away in the lunchroom where people are talking.
I don't see why this low volume is seen as ok or acceptable.