As a senior citizen in a high-rise apartment located next to a 4-lane main road with a few schools in the area, I believe, from endless observation ("Get a life" comments noted) that education of 'we-know-it-all' teenagers, whose heads are buried in their phone screens, are the most dangerous pedestrians.  Those on the crossing deliberately slow down and those approaching the crossing run to establish their rights.  Schools need to take some responsibility.