We are planning a big family holiday as a surprise for my parents. We are planning on hiring out a big farmhouse or similar for three days.
There will be:
Me and DH
DS & BIL with three children
DB & SIL with two children
Mum and Dad
My sister has suggested splitting the cost three ways i.e. between me, my sister and my brother (my parents three adult children). I don't mind splitting the cost of my mum and dad's accommodation between the three of us as its a surprise for them. But should I pay a third of the total cost when its just me and DH? My sister's family will be five people (2 or 3 rooms) and my brothers family will be four people (2 rooms). The children are all between 12 and 5 years.
Am I being selfish? Should we pay per person (including children) or per room, or should I just accept it and pay a third of the total cost?