She was involved with the company for a very "young" period of time.
Sounds illegal.
I had an interview where they weren't expecting me when I showed up (red flag 1) and the interviewer asked how old I was and after I responded said "wow you look like you're in high school" (red flag 2).
I always wonder how far I could have taken that legally, but I'm not litigious.
I'm in my 40s (and look it) but here's a response I used to use.