go - My object is not updated even if I use the pointer to a type to update it

Question

I store some Individual objects in a slice. Before appending it to the slice I print the name of the Individual object.

After I have stored it in the slice, I then retrieve it as a pointer and want to change the name to "Peter", but the change does not work since it still prints "Steve". Why?

type Individual interface {
    GetName() *string
    SetName(name string)
}

type Person struct {
    name string
}

// Implement functions of the Individual interface
func (p Person) GetName() *string  {
    return &p.name
}

func (p Person) SetName(newName string)  {
    name := p.GetName();
    *name = newName
}


var individuals []Individual

func main() {
    person := Person{name: "Steve"}
    fmt.Println(person)

    individuals = append(individuals, person) // append Person to slice
    p1 := individuals[0]     // Retrieve the only Person from slice
    p1.SetName("Peter")      // Change name
    fmt.Println(p1)          // Should print "Peter", but prints "Steve"
    fmt.Println(person)      // Should print "Peter", but prints "Steve"
}

Answer 1

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