I'm the baker in the family so I always do the pie/dessert, but I don't know that anyone expects it of me, it's more my choice. Last year we were all bringing store bought things, I don't know why we thought that was safer than cooking for each other, and I ordered a pie from a local pie shop, but fortunately we ended canceling because the pie was in-edible. So no more store bought pumpkin pies for me.
The thing that people get hung up on is the stuffing/dressing... it has to be Stove Top. I always add extras, like apples and cranberries, but gosh darn the base has to be Stove Top. And since my Sister is hosting this year the cranberry sauce will be Ocean Spray from the can, plopped on a plate still in the can shape, just like Mom used to serve.