One day we might add some common utilities for error handling sealed classes to the Kotlin stdlib or maybe even some special syntax. However, I’d rather prefer to see it starting with community first. Programmers have to accept sealed types and start using them for the error in handling in their code. We need evidence (in code) that this is what people are more comfortable doing. So far, we have a long path ahead of us to wean people of abuse of exceptions. P.S. Rust did not have its ? operator on day 1 either.