Should Whotter grow up?

I just realised that my baby Whotter, who is now being monopized and mothered by my friend Steph, is a year and 3 weeks old in Second Life. I suddenly wondered if that would not mean he is a mature otter by now!

Given that a day in Second Life lasts 6 hours and male otters reach sexual maturity at age 3.... we have been treating him like a baby for too long. We might have to accept that the words "whore" (his first word), "mama" and "fish" are already quite an accomplishment for such a creature and find him a larger furry avatar.
 
Also, it's time to find him a nice prostitute!

What do you guys think? Should Whotter grow up? Or will he be an eternal baby, like there are so many in Second Life?