For single operations, maybe (and still it's a style, you get used to it), but the value comes from chaining. For me, the user/ageNext example is much more read

For single operations, maybe (and still it's a style, you get used to it), but the value comes from chaining. For me, the user/ageNext example is much more readable with monads. That might also be because I'm used to monads with Rust.