I think this highlights the two extremes. The grey area requires human interaction, such as, talking to the school leadership and explaining your phone-less situation. I guarantee they will accommodate some other solution. Like, “pickup for you is 3:15 every day” and just get used to your face. It’s a rare situation they likely didn’t consider, but it by no means is insinuating that if you don’t own a phone then your kids will go to CPS. It’s saying if you fail to pick them up they will, but if you fail to show up just because you can’t check in via app, that’s absolutely your failure and you’ve been warned about the consequences.