I don't know, folks! Parents are usually pretty wise about stuff like this.
Of all the ladies I dragged over to Mom and Pop's when I was "lookin' around", the ONLY one they ever took a shine to was the one I ended up marrying! And they turned out to be pretty much right on mark about THAT ONE, alright!
(and I ended up always havin' to agree with ol' Pop whenever he'd tell me later on..."Ya know boy, the smarted thing you ever did in your life was marrying Judie!")