I think this is the most intelligent handling of this too-often delicate situation that I have seen on a website.  I had wondered how this site would handle such things, and I'm encouraged as well as relieved to find this post.

Comparing with other sites (some too-liberal in my mind bordering or crossing into MAJOR legal red-zones, or others incredibly strict ((no names mentioned but we can conjure them just fine))...), I really like this best. 

Great logical handling of visual aging, and thanks for not being a block head like those over at... well... that other place... and saying characters can't be "aged."  That's a really dumb standing in my opinion! (Thiers, not yours! ^^)

Well anyways, the whole point of this was just to say THANK YOU for being INTELLIGENT and making the rules this way.  As a new artist here and a logical person, I really appreciate this distinction! =)