Won't somebody please think of the children?

[brian c]

Also, this is kinda partial to humans. What about already small creatures, like Halflings? By you're rules, a Juvenile Halfling child is actually weaker than a Weasel.

I don't see a problem with that. Considering adult halflings are about 3ft tall, 35 lbs, a juvenile halfling would be freaking tiny (not literally like the size category, just in real world terms)