Short is not equal to young. We don't let five year olds drive because they're not mature enough to handle driving, not because they can't reach the pedals. Short adults are very capable of driving.
Additionally, short people have eyes that generally work. He could very well have controlled that the pin was placed in the right socket.
He didn't.
P.S. : why is Danny 2's post no longer open to votes ? What is the reason of this special treatment ?