Learjet,
from personal experience, it is much much much harder to become a qualified doctor or lawyer than a pilot. There is just no comparison. If you think otherwise you are fooling yourself.
As regards to the Flexi-Crew issue:
Anyone who now signs one of those contracts is just plain stupid. Chasing a "dream" is simply not a justification.
If you can come up with that kind of money then use it to become something sensible, like a lawyer or doctor.