Why user pointers to structs in golang?

From tutorial in tour of go -

package main

import "fmt"

type Vertex struct {
    X int
    Y int
}

func main() {
    v := Vertex{1, 2}
    p := &v
    p.X = 1e9
    fmt.Println(v)
}

I can just do v.X to get the same value instead of assigning a pointer (p = &v and then p.X). Is there a design pattern that'd be coming up later for the same?