I've had to use Mods to fix school issues as it once led to a child being taken by a social worker and that save was lost after it got so corrupted that it coded and vanished.I also started playing my towns from a new settlement started in an empty world and gradually add families over time so the town will take a few generations to grow.I use AwesomeMod because I wanted to prevent the issues with schools like overcrowding,routing fails on entry,routing fails in transit,students attending wrong schools and the mess is causes with saves.I got the no social workers Mod so they can't take a child away for failing school as I plan to use playable social workers instead so a child can be taken away without it causing the save to get corrupted and becoming unplayable.It can also affect babies not being looked after by parents as those get taken away if it goes on too long.