I would bet that 90% of people who think they know what their kids are doing online, actually don't. (I'm not judging; it's hard!)
https://www.commonsensemedia.org/blog/how-colleges-use-kids-social-media-feeds?utm_source=NEW+06.21.2019+DEFAULT&utm_medium=email&fbclid=IwAR3jD-Z8QQwxMkpGvGc8dEu3AJEjU4q3l3zCD0i2gfXuU-kDDgiOq097Jmg