It sounds like you're leaning into the trend and doing a large part of it to yourself? First with your phone running software that you apparently do not feel works in your interests, and then secondly using a tiny agency-limiting phone as your "primary computing device", or at the very least normalizing that it's what kids should be doing? If the lock screen of my desktop/laptop/phone were to start saying weird messages like that, I would investigate it as the security lapse that it is.