:D Thank you, all that sounds very sensible and proper!
With the hobbits, I think a lot of it comes down to how the author interprets their ageing. Is it the same years of childhood as a human has and a long period of irresponsible young adulthood (tweenage) leading up to 33, or do they age more slowly? If the latter, we could just count about 1,5 hobbit years for every 1 human, thus making 33 ->21... But that's pretty impossible to make mod rules about. :D If they're adult in the interpretation, there we go, right?