Unless/Until a pilot shortage gets severe enough to cause airlines to sponsor ab initio training programs, there are not going to be many "scholarships" available to most folks.

Aviation, being primarily a commercial/industrial endeavor, is not considered worthy of scholarships by most of the non-profit realm, and the government probably thinks it already pays enough to train military pilots, the majority of whom will eventually work for airlines.

It's not particularly easy to break into, but enough people are willing to put up with the hurdles because of the likely high payoff at the end (which really only about 30% of student pilots ever achieve).