IMO, Kotlin coroutines are better of Go's goroutines, although they are a little different beasts to compare honestly (apples and oranges). Go inits goroutines on stack, but min size is 4KiB, so it's not trivial to grow them. Also you need to watch over and destruct goroutines manually to prevent memory leaks (using

   var wg = sync.WaitGroup
   defer wg.wait()

   wg.Add(1)
   go func() {
      defer wg.Done()
   }

)

And create a separate channel to return errors from a goroutine. Definitely more work.