The scale argument is silly. Did Andy only have one Buzz Lightyear figure? If Andy is like most kids, he would have 23 Buzz Lightyear toys in every size imaginable. A Halloween Costume, bed sheets, bath towel, notebook, light up tennis shoes, electric toothbrush, and Underoos.
And my guess is the fence is more a knee high picket type yard border and less a 6' privacy fence.