When Did I Become the Mom?

I am in the cool coffee shop on the edge of campus, while Boy the Eldest walks around campus seeing the buildings he missed when he was a student here a thousand years ago. There is a deer head on one wall, a stained glass window on another wall, and a laptop on every lap.

The scruffy-bearded kid sitting across from me just popped each of his 10 toes in sequence.

I'm proud of myself for not telling him to quit that, right now.