When Mark says being a “passenger or a driver” he means that passengers will follow what the drivers do and wont think for themselves. Drivers how ever will think for themselves and do what they want without any real hesitation. The “soon as I..” statements he said meant that don’t wait until this happens in your life don’t wait till your whatever age to do this. Start living your life now without hesitation, because the moment you don’t start doing, your life will go by you in a second and you won’t get it back. So start doing. When Kari said “Where did the last 20 years go?” She means that here last 20 years went by so quick and she didn’t even realized it.