In kayaking, there's no shame in walking an area you're uncomfortable with.
In skiing, there's no shame in skipping an area you're unsure about.
In cycling, there's no shame in walking an intersection obviously designed without bikes in mind.

"Move not unless you see an advantage; use not your troops unless there is something to be gained; fight not unless the position is critical." Sun Tzu, the Art of War [12:17]