There’s a vast gulf between “reading about a job online” and “doing a job”. Of course college bound kids know that jobs exist, but they don’t know what it’s like to do them for any extended amount of time. And I’m guessing that one of the main reasons that they don’t know what it’s like is that their parents and every other adult guiding them has been telling them, implicitly or explicitly, “you’re a college bound kid, jobs like this are beneath you. Just focus on school”