Like many households, we have a division of labor for Thanksgiving duties. I put the leaf in the table; my wife roasts the turkey. So we're about even, right?
C'mon, without the leaf, that turkey would take up the whole table. If I pull the table apart but don't put in the leaf, the turkey falls right through, lands on the floor, the dog gets it and Thanksgiving is ruined.
That sounds like the plot for the cheaply animated holiday shows of yore. There's some minor setback, and an adult says, "Looks like Christmas will be canceled this year." But then Rudolph steps up and says, "My convenient genetic anomaly can help! I'll be a headlight." Because Santa never thought of that.
Anyway, Thanksgiving is never in peril. Even if the turkey isn't ready when everyone's on their second glass of spumante and getting loud; even if someone forgets to put out the Obligatory Relish Tray so you can enjoy the annual event of rejecting celery (it's nature's dental floss!). Even if someone brings along a stray guest, and it doesn't seem like there will be enough room.
There's always enough room — if you have the leaf.
I'm not saying that leaf duty is as labor-intensive as preparing the turkey, but there is work involved. You have to get it out of the closet, which means parting the coats like the Red Sea. You have to fit it in the slots just so. Then you have to turn it around because you put it in the wrong way, again.
Same as it is every year. Except this year, someone on that side of the leaf will ask Daughter: "Have you decided on a college?"
And then next year: "So, how's college?"