It has proper arrays and slices, even being able to define a sentinel value in the type system, so you know when it is a C string or a slice with a specific size with arbitrary values. Strings can become a problem if you need another encoding than the chosen one. Then you start to use byte slices anyway. You need to allocate a new one if you want to change just a part of it. Safer yes, but can produce unwanted overhead and you have to duplicate many APIs for strings and byte arrays as it is the case in Go.