I'm referring to a poster who said that at 2-1/2 or 3 yrs. girls are normally half their adult size. That seems to be a little off. At 36 inches, that would make most girls at least 6 ft. tall when they're grown. Either the age is wrong, or the estimation is wrong. A 3 yr. old would probably be maybe a third of their adult size, at best.
I didn't snip it, but there was part of your post where you said you read that Caylee was tall for her age. I was just curious as to whether she was tall for her age or not and found that she was average according to the chart.
As for what the other poster said, I have always heard you double the height on a child's second birthday, not at 2 1/2 or 3, to get an approx. estimate of adult height. Not fool proof by any means, but a pretty good estimate, give or take an inch.
Caylee was 37 inches at nearly 3. I'm sure she was at least several inches shorter than that on her 2nd b-day. Say she was 32 or 33 inches, that would make her adult height approx 5'4 to 5'6. That is average height for a woman, sounds reasonable to me.