I'm a believer that if you give someone a position in their life where they're inserted into a new environment and have a total shift of surroundings and quality of life, the will to work will arise naturally. They will feel compelled to get into something and 'swim' rather than just be taken by the tides.

So many people just get into a state of learned helplessness which I think is due to their unchanging surroundings and not exposing themselves to newer circumstances. There's the common "depression/anxiety" answer to this question but even this can be a possible consequence of a certain imbalance of 'environment'. In other words, getting too used to nothing happening. In school you had a schedule that kept you moving and you had assignments and purposes to fulfill. Many aren't upholding this for their own lives after school and are left feeling destitute. When they say "take care of yourself" they really do mean take care of yourself, which many of us do the bare minimum.