Ruby on Rails for the uninformed

1)It appears that most start ups are looking for RoR developers...would you agree? (I would love to be part of a disruptive start up someday and that is the only reason I am considering learning RoR..should I study something else?)

2)How many hours would it take a non programmer to go from zero to hero in RoR? I have seen a number of "bootcamps" but am skeptical.

(context for me= 33yr old, Love a vertical learning curve, just finishing a mining company start up in the S. Pacific, have the resources to consider a change)

3)which hands on training company is recommended?