Certainly it is seen as a rites of passage thing in year 6. Especially if it is an activities holiday at say Arathusa. When children are at senior school it is often trips to France, and a trip that is uk based is much better as an introduction. Children that want to go really blossom. I wonder if its a bit of a strange message to give your child- if they are the only one held back for this reason. All the ones I know that don't go are either because they have been naughty or too homesick/clingy. But then it happened at my school 30 years ago too- we went to L0ndon from South Wales for 4 days- wow- we got to watch plnaes landing at Heathrow for a morning - wow!! We got lost on Hampton Court maze- wow- met a real French person- wow! ( it was mind blowing to us).