I agree! Tell her to get out there and get the job done. While it is tough to hear them cry, she is the one with the growing pains.
This experience is teaching her to become an independant young adult and is GOOD for her. I was in the USMC, and while this guy might be tough, I guarantee any one of my DIs could take him with one petite hand tied behind their backs. She will become the same way, intelligent strong and independent.