Having the same supper feels more of a way to avoid stress, to avoid making multiple decisions daily, to have some grounding in your life, to have less risk. Similar to Steve Jobs wearing the same uniform everyday to work. [1]
As said in other post in this thread, by Cthulhu_, part of the appeal of pairing is "getting out of your comfort zone". I don't think this guy wants to be out of his comfort zone for 8 hours a day.
If he were a coder, maybe "stability" would be working solo. Maybe he would have liked 8hrs/day pairing. Maybe he'd prefer start his coding around 6:00 and going home after lunch. No way of knowing.
We mortals, are likely more suitable for moderate programming, with infrequent informal pairing when necessary.