Django manages to autogenerate migrations that work in the VAST majority of cases.

They don't need to work in every case. For the past `~15 years 100% of the autogenerated migrations to generating tables, columns or column names I have made just work. and i have made thousands of migrations at this point.

The only thing to manually migrate are data migrations from one schema to the other.

I end up needing to write a manual migration maybe once every other year in real world use.

That's why you can do your own migrations in Django for those edge cases.