How long did smolder live in the wild before her transition to a civilized life?

22 years!
(We catch her around 23 transitioning and attempting to be around humans! She definitely gets accustomed to things but naturally prefers and goes back to outdoor living. No one can tell her how much food she can catch/where she can sleep there!)

Ah, just being clear. the world is fantasy/medieval era stuff. (Nothing modern)