A Bunch of Old?

Anniston was laying in our bed tonight waiting on her daddy to read her a book. Out of nowhere she says, "Daddy, is Granny and Pop dead?" (The answer to both is yes, they both died a little over a year and a half ago, about 3 months apart. Granny was my grandmother and Pop was Wes's granddad.) "Yes, they are both dead, Anniston," Wes answered.
"Well, how do you get dead?"

"Usually you get old....."

"Oh. Is Nanny old?" (Nanny is my mom.)

"No, not very old."

"Just a little old?"

"Yes, just a little old."

"You have to be a bunch of old to die?"

"Yeah....."

"Come on and read to me, Daddy!"