In many years since asyncio has been added, I have never used it willingly, outside of the cases where a third-party library required it. There has never been

In many years since asyncio has been added, I have never used it willingly, outside of the cases where a third-party library required it. There has never been a practical benefit for any of that stuff when compared to select. It always worked poorly and never justified the effort one has to put into writing code that uses the library. The behavior OP describes is just one of the many bad design decisions that are so characteristic of this library.