Chins can live usually 15-20 years.. I tried really hard to litter train my 2 girls, and it wasn't easy..they rather chew a litter box then urinate in it.. and they don't have any control over their bowels, I call then "pez despensers" because they poop contantly.. you'll always know where your chinchilla has hidden if it escapes...just follow the train of poop lol.