um, why not just 18+ fictionkin? 18 year olds and up are still adults :/
an 18 year old+ tag would be great too!
But wouldn’t necessarily serve the same purpose as a 25+ tag the OP is asking for.
25 year olds and up tend to have very different life experience and generally different life expectations than 18-25ish, due to being out of school, in employment, married, having children, etc. Obviously this is a generalization but yes, to generalize, there is a difference.
