Too old for Legos?

The conversation went a little like this:

The scene: a library

Five-year-old (speaking to librarian): "When do you guys get the Legos and spread them out on the floor for kids to play with?"

Mid-20's Librarian: "Let me look that up. I'm a liiiitle toooo oooold to be playing with Legos."

Five-year-old: "Just because you're an adult doesn't mean you have to stop playing with Legos."