How Old is your Gold Fish?

A friend of mine was annoyed when her son walked up to her at a festival with a goldfish in a bag that he had won from a game. She figured she'd have to have a sad talk with him soon since those things are so unhealthy and the game itself so shady. The fish died last year, 12 years after the day he won it. It survived 4 moves and several bumps and splashes.