I said between 20 and 30 because I figured that would be the most realistic range that someone looking to hire people for a mercenary band would use. I'd say that the youngest, if proven to be skilled enough, could probably be 17, but 20-30 seemed like an optimum range for me. If you want something younger/older, keep it within reason. Also, thanks for adding the link in the Interest Check, I didn't even think about it.