I've been thinking about doing this with a number of friends but quite a few of them are on their first children and my second is due before Christmas so if you do this arrangement, do people just suck it up and buy for two children even if they have one child themselves? Or does it all just pan out in the end? I don't want to look like I am suggesting a system that is unfair!
Alternatively we could just buy the adults but everyone likes to buy for children at Christmas normally.