Nor do I, for under 10s as a one off on holiday. But we're talking about teens and pre-teens (and it happens at home too).I mean I obviously do follow them otherwise I wouldn’t be on the thread…I suppose I just don’t see siblings sharing beds as a massive deal.
With that age group, you have to consider things like periods, wet dreams and other various issues surrounding puberty and the need for privacy. 12/13 year old siblings of the opposite gender sharing a bed is grossly inappropriate.