N.: I used to not like blueberries, but now I do.
Me: Sometimes our tastes change as we get older. There are things I like now that I didn't like when I was a kid.
N.: Like what? Pears? Apples?
Me: Um...I don't know... I can't think of anything right now.
N., very serious: Because it was so long ago that you were a kid.
Right. Thanks for making me feel ancient.