This is my one and only school in Dragon Valley, in the middle of the day, with NRaas Tagger showing all sim tags in Map View. There are no traffic jams, foot stomping, or route failures at or around 9am thanks to the Additional Entry/Exit mod already linked to. This is a mod that I helped beta test, by the way. There are a lot of doors all around this school rabbithole shell building and they all get used as entry points, so everything runs smoothly each morning with each arriving child/teen heading for the next available door to use in turn. If I didn't have or want this mod, or if the student population were to double again from where it is now at around 34 (that's already over the capacity of most schools in an unmodded game), I would build them a second or maybe even a third school and take over the school registrations myself or use NRaas SP and GoHere to do so. Or possibly use the Careers mod's homeschooling and private specialty schools to handle the overflow of kids to be educated and reduce the potential for door crowding. There are many solutions to consider.
There is absolutely no reason to use a Core Mod like Awesome to suppress school assignments unless one really does want to keep kids out of school on an ongoing basis. What might make sense for a sparse, spread out population of a town set in the sixteenth century and still very early in its development where it could take too many sim hours to travel across the countryside to a schoolhouse and back will not necessarily translate to the most useful of solutions for those playing in other situations.
And the social workers don't come anywhere near sims I care about because I don't allow children and younger to suffer or miss school enough for that to happen. Anything unexpected can happen in this game, we know things can go wrong, children can be branded as being mistreated or not attending school when there is no real reason for any of it. But that's what finding out why it happened, quitting, reverting to a prior save, and replaying things a different way are for.