AHHH NOOOOO NINI'S SON, DON'T DO IT! THE NUCLEAR PROGRAM ATE MY SOUL! hahaha
Good for him though!
Have him stay in for the six years, then get out, because if he gets a job in the energy sector, be it nuclear, coal, natural gas.. he'll make much more money as a civilian than he will in the Navy. That's what Jay did. He went from making about $40k a year to $90k a year.