Kids shouldn't be forced to start that early anyway. It's borderline child abuse imo. Maybe permanent DST will lead to school schedules that benefit children not adults.
It's actually the exact opposite. Permanent DST means that kids will be starting 1 hour earlier relative to sunrise, which is terrible for educational outcomes.
It's already bad. The issue isn't when you sleep up relative to the sun, but relative to your responsibilities. Some kids have to wake up before 6am not to keep up, which severely limits their options in the evenings and their phyiscal development.