I've worked on a few sizable (~100+ tables) Django Rest applications and have yet to run into all these fabled type safety issues that would prevent refactoring

I've worked on a few sizable (~100+ tables) Django Rest applications and have yet to run into all these fabled type safety issues that would prevent refactoring. Serializers and hygienic procedures seem to take care of whatever might have been or maybe I'm just really used to the setup.