Disclaimer - I love MIL and get on with her well.
We had planned to go to hers on Christmas day. She likes it if we do...it would be me, DH and two teen DDs.
We tend to go there and spend the day...she enjoys it and always asks though we've asked if she'd like to do it at ours but she's adamant. She's a fit 70 year old who works part time and plays sports...not doddery at all so we go and because we're in Australia, it's a very relaxed BBQ day and we bring some fish and meat/salads too.
Anyway...speaking to MIL yesterday about what I can bring and towards the end of the conversation she threw in "Oh and we're all going to head to SILs afterwards because they've got air con"
SIL lives with FIL in his house with her little boy, our nephew. Usually, SIL and FIL would also spend the day at MILs...MIL and FIL are separated but great mates and just live in their own closeby houses.
It might not seem a big deal to you...but I just do NOT want to spend half of our Christmas day at SIL's and neither does DH.
We love FIL but SIL is difficult. She's bossy, rude, entitled, grabby and sometimes downright mean.
She bosses FIL around in his own home...she's sort of taken over it and that pisses us off a bit because we don't like seeing FIL get bossed.
It changes the whole day. We're all very comfortable at MILs...it's like a home from home but not at SILs and FILs home. We don't feel comfy there.
And it's like DH said "When has MIL cared about aircon anyway!?" she's never got it because she's old-school, used to the heat and won't pay though she could afford it...it feels more like SIL is trying to take over the whole thing.
I don't particularly want to drive an hour to MILs, eat and then have to change houses! There's no relaxation in that.
DH thinks we should cancel....I feel sorry for MIL though and am torn. The only option we can think of bar cancelling is just to leave after food which seems rude.