Classes with one public function can be converted into a closure. Classes with two or more public functions can be converted to a closure that return those func

Classes with one public function can be converted into a closure. Classes with two or more public functions can be converted to a closure that return those functions through an object. Then classes and closures become closer. Classes, of course, offer inheritance. Yet most prefer composition over inheritance. Classes, too, offer polymorphism through typing. But dynamic languages use duck typing. In most dynamic languages where duck typing and composition are used, I find little need for traditional object orientated programming. I frankly prefer closures, composition and duck-typing over the classes, inheritance and polymorphism through typing. The only thing missing is type checking and Golang's interfaces offer a way through that without the overhead of traditional object orientated design.