"Even though he's been living in human society long enough to get a job and everything, all his interactions have been professional or impersonal up till now. The SID must have been SUCH a shock to the system. ;-D"

Hahah, it must be like a whole new world indeed. :D And then there are the ~proper~ families that definitely don't operate like the SID either, lol, which he still has zero experience with. He can impress them with his job and character (like Zhao Yunlan's mother), but I can see him not actually knowing how they do things and what the unspoken family-related conventions are.

"Oh, yes! Why isn't SW there? tiny momentary sadface"

Exactly my reaction when I realized that, lol.