The education suggestions would be the best use of money and funds IMO. I agree that it's far more effective to immunize people against joining than to try and convince people already in to leave. Stunt their growth and let them die
If it's made into too much of a threat against religious indoctrination though it would be blocked by the religious right. It needs to be subtle and not labelled as any "anti cult" programme.
So it would need to be general "life skills" which would include teaching kids how to think critically about things they are told, why perceived (and self appointed) authority isn't always "right" along with other life skills (how to budget and balance their accounts, invest etc...)