Both tags have the same purpose. teen has a more descriptive wiki entry, but only three posts. (The count says four, but that seems to be wrong.) teenage has a little over forty, and cross-references (some of?) the other age-related tags.
Of the three "teen" posts:
- post #287561 was using the tag wrongly (generic original character, so it's his normal age), so I removed it
- post #512502 was already tagged "teenage" as well as "teen"
- I added the "teenage" tag to post #628540
I haven't removed the "teen" tag from the remaining two posts, and while I'm inclined to copy the text from teen to teenage, I haven't done that yet just in case people object for some reason. (Maybe there's some reason for "teen" to be the preferred tag over "teenage", for instance.)
Updated by a moderator
