Neo, my son is 11 years old and always knows where he finishes, either from his own knowledge of the race, or from me as he insists I note his position.
I was not upset about him loosing about 8 grid positions in the final - HE was. I just told him to keep smiling and wear it on the chin
The kid next to him (younger) also knew he was out of position but had gained several places, so he was very happy.
There is a large core of kids who have been racing regularly there for some time now and boy, they are all competitive on the track. Off the track they all love the social aspect, as do the parents. (We also have a heap of fun too 'cause we all love the sport).
As Bonegraft said, It is a RACE meeting in every sense, and accurate results are important to many/most racers irrespective of age. Sure mistakes can be made, but Sat night for whatever reason was a bit over the top.