Many times, the parent-measured height of a child will not match with the Disney measurement at the ride queue.
There are actually TWO places when a child can get measured... at the beginning of the queue, and just before boarding.
And, yes, a child COULD get "passed OK" at the first measurement, only to be barred at the second one, which can be very traumatic for some guests.
If the child is very "close" to the right height, but just "misses" when (s)he is actually measured, the card could soften the blow a bit.
Yep!
I only have DLR info...but when DS was going on Star Tours the first time, he was measured out front by a CM. He was fine. Then he got inside to where you're send to the doors, and the CM pulled him aside, pushed on his shoulder, acted like he *wanted* DS to shrink down a bit, and put a slip of paper between DS's head and the stick. He didn't make the height. Hubby didn't make a scene (though he wanted to), and the CM gave DS one of those cards.
When he did make it officially, we measured him at the front, the CM saw us measure him, we showed the card, and we were sent literally to the front of the line. There is no FP at Star Tours at DL, so we were sent through a side entrance, up some stairs, and were *right there* where they send you to the doors.
DS ended up getting two cards for Grizzly River Run at DCA, b/c we weren't sure about how he would measure up, so he went to be measured...he was just a touch under, and the CM (the stick is right at the beginning of the line) gave him a card. The next day as we passed by, he wanted to see if he'd grown that 1/4", and ran over to measure again...before we could tell the CM he already got a card, the CM had already handed DS a second card. We still have yet to use either card, b/c the ride's line is never long when we've been there. One will just be scrapbooked though.
So those are reasons...
Thanks Robo for remembering that they are used at DLR as, basically, FPs (and have the language on them to help out)!