The main problem with type hints for Python code is that it changes the way you think about writing Python.

Before, it went something like this:

1) Install Python (if you don't have it already)

2) Install your favorite text editor

3) Write some Python!

Now, it goes something like this:

1) Install Python

2) Install your favorite IDE

3) Install plugins for your IDE

4) Install black, mypy, flake8 plus some other nonsensical "helper" library

5) Don't forget your poetry, gotta have that

6) Be careful to pick only 3rd party libraries that have good type hints..

7) God help you if you try writing something yourself, let your IDE do that.

Type hints make not only your code more complicated and unreadable. They complicate your entire workflow.