The school is for returning and non-traditional students. You don’t need to be a parent or a vet.
Per the website https://gs.columbia.edu/admissions
“The School of General Studies of Columbia University is the finest liberal arts college in the United States created specifically for returning and nontraditional students—those with a break of a year or more in their educational paths—seeking a rigorous, traditional, Ivy League undergraduate degree full or part time.”
You can also contact the school directly and ask. 408 Lewisohn Hall, MC 4101, 2970 Broadway, New York, NY 10027 | gs-admit@columbia.edu Phone: (212) 854-2772 | Toll free: 800-895-1169 | Fax: (212) 854-6316