[It's not really important to him to celebrate his birthday, and once you're his age the actual years don't seem to matter so much. But for the sake of argument:]
Birthday celebrations aren't really about celebrating the literal anniversary of your birth. It's more about you still being around, and probably getting all your friends together on the closest Friday or Saturday. I say just celebrate your regular birthday if that's what you want.
dn: Otto Octavius | text
[It's not really important to him to celebrate his birthday, and once you're his age the actual years don't seem to matter so much. But for the sake of argument:]
Birthday celebrations aren't really about celebrating the literal anniversary of your birth. It's more about you still being around, and probably getting all your friends together on the closest Friday or Saturday. I say just celebrate your regular birthday if that's what you want.