There are two checkpoints. One has a long line of vehicles in front of it, the other none. If he does, then he is a chooser, not a follower.
Evolutionary biology describes a form of sexual selection that deals with mate choice.
Organisms can make either an active or a passive choice when choosing a mate. Imitation of this variety at the human level is known as memetics and is incredibly common. Copying the behavior of others or our own previous behavior can have its rewards. Such a lifestyle choice can free up time for other pursuits. Decisions are ready-made.