Yes it is nice to celebrate the end of Junior School. Apart from the Yr 6 Residential trip and the Yr 6 surprise outing on the last day and the Leavers' Assembly why mark the occasion with a glorified School-Disco comprising a shit-load of extra expense at the exact same time as you are buying a completely new school uniform for Secondary for your child?
Well done those parents who suggested that it would be a fantastic idea and who will be spending £30 on a FUCKING TIARA for their little Princess for this one evening and will then spend shite-all on decent non-flimsy uniform for their children if the children are to be clad in uniform at all thus making my job harder 
Damn the Yr 6 Prom, damn it all to Hell. And no I am not being unreasonable!