First things first -- that street sign is AWESOME. That said.
A new law has passed in Honolulu, Hawaii that will hit walkers that cross the street while on their phones with a $35 fine. Some people may think that's over the top ridiculous, but let's be real -- it's not like it's just for walking on the sidewalk. It's for crossing a street...something you probably want to pay attention to so you don't, I don't know, GET HIT BY A CAR?!
If drivers are expected to stay off their phones for road safety, people in busy intersections should do the same (although, the fact that a law needed to be passed just to enforce this common sensical thing pretty much shows the brain power of the human race in 2017.)