golang slice range polymorphism interface

stereotype.go

package main

import "fmt"

type Human interface {
	myStereotype() string
	sex() string
}

type Man struct {
}

func (m Man) myStereotype() string {
	return "I'm going fishing."
}

func (m Man) sex() string {
	return "male"
}

type Woman struct {
}

func (w Woman) myStereotype() string {
	return "I'm going shopping."
}

func (w Woman) sex() string {
	return "female"
}

type Child struct {
	sexe string
}

func (c Child) myStereotype() string {
	return "I'm playing video games."
}

func (c Child) sex() string {
	return c.sexe
}

func main() {
	m := new(Man)
	w := new(Woman)
	c := new(Child)

	c.sexe = "boy"

	hArr := []Human{m, w} 
	hArr = append(hArr, c)
	for n, h := range hArr {
		fmt.Println("I'm a human, and my stereotype is: ", hArr[n].myStereotype(), " I am a", h.sex()) 
	}
}