Your teen passed the test. But nobody taught them about the Ghost Gap.
Near every intersection there's a zone of hidden space — a lane, or part of a lane, your teen can't actually verify. Traffic stacks up, a gap opens, and everything about that gap says "empty." The Ghost Gap is the space that looks empty and might not be.
It hides in the adjacent lane: behind the stopped car in the next lane over, in the turning lane screened by taller vehicles, in the sliver of road a "helpful" gap in traffic invites you into. The danger isn't the car your teen can see. It's the one occupying space they never checked.
If you can't see into a lane, treat it as occupied. Empty is something you verify — never something you assume.
The scan that closes it: before crossing or turning through any gap in traffic, clear every lane the gap touches — one at a time, including the turning lane. If a single lane can't be verified, the gap isn't clear yet. Creep until it is.
Most parents never teach this — because nobody ever named it for them. Now it has a name. That's how the Wright Method works: name the danger, build the scan, make it a habit.