M0nica
Children in private schools, like other children, go on school trips, for which coaches are used. What is more they stay in Youth Hostels, camp sites and other boarding schools in the country they are visiting.
My children went ot private schools in the 1980s and you can throw any ideas of cossetted rich (actually most weren't, just armed services and diplomatic) they were anything but. Parents of children in state schools would have expected much better accommodation and travel arrangements on school trips.
We had children in Private Schools in 80’s through to end 90’s, the school stopped ski trips due to low take up. The pupils preferred to go with friends and family as opposed to roughing it
Several of our children have gone on ski trips in sixth form college, hated the coach journey, wasn’t impressed with the hotel/food and as they were accomplished skiers ended up helping the beginners which they found to be the most enjoyable part of the whole week.