I suspect the ranting author failed to appreciate that Bluetooth is probably cheaper to implement for the audio because regular headphones require three wires while power supply only requires two. Ingenious really.
EDIT: Proper wired headphones would also require a soundcard in the dongle.
Because it depicts teenagers, yeah. It would have been fairer if it showed a dozen people with a more representative spread of ages. It would still skew young though.
I am Gen X, a computer scientist and often use my phone while walking.
Have often jumped on the wrong train because of my lack of attention. Not life threatening but results in extending my one hour journey by 30 minutes. But that kind of error did also happen occasionally pre-phone so at least now I have entertainment for that extra half hour :)
But the Australian eSafety Commissioner isn't giving up her "won't someone think of the children" rhetoric.