Nighttime Talk with Niall Boylan

Listener dilemma:

Joanne's sister-in-law hosts Christmas dinner every year for 16 people, and this year, she’s asking the 9 adults to pay €30 each. While she understands Christmas is expensive, she and her husband are well-off, and she insists on hosting without letting anyone else help. Joanne's husband thinks she should pay to “keep the peace,” but she feels it’s rude to ask for money after making such a big deal about hosting.

Is she being unreasonable, or should she just pay?