Man, what?bright individuals do not join the military they go to places like Harvard, Stanford, etc...
You need to read up on what the military offers people. It's quite literally a cheat code for people that grew up in rough areas.
Now, if you're an officer, it's on a whole 'nother level. She'll be making 100K when she makes O-3, and as an officer, she's already networking with other successful people.
FYI, it takes 3½ years to make O-3. Making 100k a year at 25-26 is practically unheard of unless you have a STEM major and network your way into a great job.
AND the military will pay off significant amounts of your student loans. She's most likely doing better financially than the average person that graduated from Harvard.