Agreed.
Unless she attended a well-known academically elite private(I.e. Phillip Exeter, Milton, Choate, etc) or public magnet HS(TJSST, BxSci, Boston Latin, etc) known for its high academic rigor and workload comparable/exceeding those of most colleges*, what was done in HS is irrelevant once one attains a college degree.
- Only brought this up as if one did attend such academically elite high schools, many supervisors/professional mentors will actually encourage such alums to list their high schools on their resumes as it can serve to give a tip in the hiring process. I personally don't list my HS on my resume...but I know plenty of fellow HS alums as well as relatives/colleges who continue to do so despite graduating decades ago. Some of my former corporate supervisors even continued to wear their elite private boarding school class rings even into their 50s.