@Mamabear - Yes, it's sometimes how it's done but as others have said, not always. DD's coach will often put a solid competitor up first on beam to set the tone for the group. But sometimes the girls decide among themselves the order...even on beam.
Competition order was something that brought out the worst in the CGMs during DD's compulsory years. I recall one truly special CGM who noted at every meet who was last to compete on an event. She wore it like a badge of honor when her kid was last to compete. Then there was another mom, not really a CGM but a Debbie Downer, who was very sensitive to the fact that her DD was always among the first to compete. Just try to tune out the negativity if other parents are discussing this...it will shake itself out in a couple of years.