Olivia Looks and Acts Way Older than Dirk

I know Olivia was only five years older than Dirk, but she looked and acted more like his mother. Don't get me wrong, she's very attractive but her overall look and tone are motherly towards him.

And it doesn't help that he's really youthful looking. I noticed it in "I Could Go on Singing." Although he's actually a year older than Judy Garland, he looks several years younger, just like he does with Olivia. Even with Ava Gardner, who is gorgeous, in "The Angel Wore Red" he seems younger than her and again he's a year older. It just always jumps out at me.