In that case go for it, but I would suggest spending a lot of time researching aviation as a career (especially in regards to financial return, work conditions, risk etc) before committing the time and money even if it's a grant.
Personally if I was to start over, had the opportunity of a grant I wouldn't put it towards flying time but look to gain a degree which would provide more career options. Aviation Computer Science, Aviation Engineering or Aviation Tech.
imho I think the future for high paying careers in aviation is with drones, the demand for actual pilots is only going to become less. Even in civilian area already seeing an increase in the type of jobs drones are doing in replace of helicopters.
<S>...-Gixer