As they say in the elites "You just werent challenged at your undergraduate school"
When she goes to grad school, she will meet many folks like her and that will be good for her.
Age is immaterial to scholarship. just like the Mexican young man who smuggled himself across the Texas border . He then graduated undergraduate , graduate, and med school, with honors and first ranks and did a PhD in moleclar bio. He did it in 10 years after he crossed the Rio Grande a total illiterate and unable to speak English.