When I visited the Stanford campus recently, it seemed like many students had the opposite of debt: massive savings indicated by personal electric scooters, Mercedes/Tesla/BMW/Audi in the student parking lots, combined with several FANG internships, it's fairly common for a CS undergrad to have $100K+ in savings when they graduate.
Whether it's family money or not, debt doesn't seem to be the big of a problem for these top students.