How long do we have birthdays?

Reilly, Kate and I were having a discussion about birthdays this morning.

R: Mom, are you all done having birthdays?
M: No, birthdays happen every year.
K: All the time?
M: Yes, all the time.
R: So.... when you don't have birthdays anymore you will be dead?


Hunh... I guess that's true - in a morbid way - yet that's how a child can understand it.