Not a typical AIBU, because I don't want to give away which 'side' i'm on, so that I get un-biased replies.
So the situation...a family of 4 (2 adults, 2 dc) are about to book a holiday. The cost is £500pp and because of free child places, 1 of their dc can go free, so total cost for them would be £1500.
Another couple, very close to the family (the dc's Godparents) will not have their own dc for that week as they are staying with their bio dad. So they put the feelers out about joining them on holiday, the family are more than happy and make them welcome. Fab.
So...now there are 6 people going, 4 adults and 2 dc, that means that overall they get 2 free childs places, so now both of the dc of the family can go free.
So the total cost of the holiday now, for all 6, is £2000.
The family think that each adult should now pay for themselves, £500 pp. The dc don't 'count' as they're both free.
The couple think this is unfair and that as the total cost for 6 people is £2000, the free childs places should be discounted and the total cost should be split 6 ways, with the couple paying £666 for 2 people and the family £1333 for 4 people (ish).
Who is right and who is bu?