The majority of meets we've been to, the order of girls is already printed on the rotation sheets, more times than not, in age order.
The times it's the cards that the coaches have in the meet and decide order as each event goes, drives me absolutely nuts!
The first time we didn't know order of girls, I actually missed my daughter's floor routine, because I thought they would at least stay in the same order from beam, just rotate by a girl or two to change the starting girl. (that's how we normally do it). Nope. DD went FIRST on floor, and I came back from the restroom with "OMG, I recognize that music!" and RAN in, just to see her land her leap, and pose.