TLS isn't simple but you still use it with IRC. Libolm/e2e is the session layer not the application layer. Why is there no library that handles key management,s

TLS isn't simple but you still use it with IRC. Libolm/e2e is the session layer not the application layer. Why is there no library that handles key management,session handling,etc... for you and all you have to do is make a library api call similar to TLS with the destination, encoding and message size limit details as a parameter and each send() operation requiring a recipient so the library can handle the auth/encryption? Can you not do that with libolm? Why can't you use IRC on top of such a library then similar to how you would with TLS?