“The people will not revolt. They will not look up from their screens” ― George Orwell, 1984
Incoming joggers who don't know whether to swerve to the left or right of you because while staring at your phone you're not walking in a straight line.
Not just joggers either, normal pedestrians too! Also your average zombie is walking at about half the normal pace and is indeed swerving left and right making them a pain to try and overtake.
Look at the number of mums on buses with child
in pushchairs or prams.
Even when signalling for attention / stimulation
these children are ignored & the phone goggling by mum seems to be the reason.
These children will grow up finding a blank wall an object of interest, even one like a phone with irrelevent messages for them oh I forgot those children are already on their own smart phone at an early age.