Bikes take much less space and they will go around people, it’s not uncommon for roads to be shared for bikes and pedestrians at the same time.
On the other hand you risk getting hit by a car if you walk into the streets, thus the metaphor of falling down a chasm.
Coincidentally it is the same space that is used by bikes. Or does the artist picture them as combat-biking on the pavement?
Bikes take much less space and they will go around people, it’s not uncommon for roads to be shared for bikes and pedestrians at the same time. On the other hand you risk getting hit by a car if you walk into the streets, thus the metaphor of falling down a chasm.