Except that they insist upon it. If not in purchases, then in baked goods, and my sisters are fortunate enough to have inherited Mom's talent for baking. Sis 1 makes this incredible buttery-sweet caramel corn by the golden-brown bucketful, Sis 2 is renowned throughout the northwestern states for her huge, chunky, soft, mouthwatering chocolate chip cookies, and Sis 3's goodies jurisdiction includes the best apple pie in pretty much the known universe.
Somewhat surprisingly, the only thing I can really do is waffles, and I have to use Bisquick, a habit which my sisters leave no doubt that they scoffingly disapprove, as they concoct their creations from scratch.
In the past, I've gotten used to receiving a batch of yummies about every year, from a different sis. The limited holiday budget seeming to have alternated among them so that in a given year, one (and sometimes two) of them resorts to the kitchen to create a Christmas present for me.
But, like an alignment of planets, all three of them this year have limited holiday budgets. As such, I'm gearing up to welcome back the twenty pounds it took me about six months to lose, in a matter of a few days. Ah well. :)