Given how many accidents happen on the way to school ("Schulwegunfälle", yes we have a dedicated word for it), it's absolutely necessary. 62k accidents in 2021, and 16 dead kids [1].
A large part of the cause is how absurdly car-centric our cities are - and yet, we're harmless compared to the US.
[1] https://www.dguv.de/de/zahlen-fakten/schuelerunfallgeschehen...