We've just had a family holiday away. Me, husband, toddler, Mum, my brother and BIL. My Mum offered to pay for the accomadation out of some inheritance from our Dad who passed away a few months ago. It was a very nice cottage.
It was a lovely holiday except BIL refused to share the cost of things and insisted on paying for everything himself.
Eg. BIL did a large supermarket shop over £100 and refused us paying half. At a family meal out BIL jumped up before the meal had ended and paid for us all even though we'd agreed beforehand we would pay this time as a thank you to Mum. Again at the chippy BIL tried to pay for us all over £40 and then got in a huff when my husband declined and said we'd pay for ourselves.
It seems like a silly thing to be arguing about but we are more than happy to pay our share and he seemd to huff and puff putting the shopping away or after the meal and said to my brother we weren't being grateful despite refusing any contribution.
This was our only holiday and it was spoilt a bit with BIL sulking and being quiet. Brother and BIL have another holiday planned.
YABU - just be glad you've saved some money
YANBU - it is rude to constantly refuse to share the cost of things