This is one of these things that you don't know you're missing until you actually start actively using. Back in the day when I was writing a lot of C++ I was sa

This is one of these things that you don't know you're missing until you actually start actively using. Back in the day when I was writing a lot of C++ I was saying the same thing as you.... until I wrote a significant program in Haskell, where sum types are also very common. And once it clicks it's hard to go back.