My experience is that fp is notoriously bad at dealing with errors. Errors are quite common in everyday business cases, although usually ignored, (like in c#),

My experience is that fp is notoriously bad at dealing with errors. Errors are quite common in everyday business cases, although usually ignored, (like in c#), which makes it hard to “fit” into whatever you are working with. Any language that doesn’t treat errors as a first class citizen in it's syntax is a bad one, which I feel like that languages like Haskell isn’t doing well. Also errors are contextual so it’s not always so that an error is one in some context and may be so in others. So the language must be flexible enough to handle both in a nice way. I think Java is kind of a good example of this where it had checked exceptions to signal errors, but when introducing fp syntax they completely botched how errors work. This left you with a mess and programs keeps crashing because people didn’t know that code could throw errors.