A deeper issue is how much of the space between buildings is dedicated to private vehicles. When the sidewalk is 6 feet wide and you're required to social distance by 6 feet past sidewalk cafes and garbage waiting to be picked up, there is no room for pedestrians -- texting or otherwise. Perhaps we should turn the two 8-foot free parking lanes into pedestrian lanes. Then you'd never even notice people walking while texting. Or running 2-abroad. Or kids playing with balls.
It will never happen, though. We need our cars, and more importantly, we need to park them near our high-density housing ;)