Why are my Zero Levels going on an Adventure?

Have you ever got yourself questioning why the heck do your level zero characters are going on this crazy adventure with monsters, planar travel, awakening old gods and cursed places? Most of the time, we do not spend more than a few minutes (or seconds) thinking about it and just jump with both feet on the awesome journey in front of us.

Howerver, it might be interesting to consider their reasons, and it might help deciding how they act and what class they follow if they survive the funnel. The following table was created with that in mind but can also be used to determine the motivations of other NPCs encountered by the party while they are adventuring. With a little effort, this could be used as a general motivation table for NPCs in almost any situation. Why is the Thieve's Guild Leader doing this? Roll on the table and interpret the result accordingly!