This advice, commonly given by the elders applies to more in life than just crossing a road. Zebra crossing here becomes the metaphor for both the extremities (in the form of black and white) meeting, creating a sort of bridge for one to cross.
This poster belong to
Make Extremism History

poster for tomorrow, the international poster competition, is proud
to announce the launch of its 2016 edition: This year we're going to do
things a little differently. It's about evolution, not revolution.