What if the W couldn't pay her share or said she couldn't? Then you had to make the decision on whether or not you could afford to pay it all if you wanted them to have it etc?
Yes, that's correct.
If it's something that just my sons and I are doing together (i.e. no XW involved), I always pay the entire cost. If it's a school field trip, then I split the cost with my XW.
