Originally Posted by Abraxas Studios
the main reason for me putting the age like that was so that I didn't limit myself in casting. I wanted to be able to go with whoever fit the role best.
You are aware, of course, that if you wrote "KATY, 20" you
aren't limiting yourself at all. You can hire a 19 year old or a 22
year old. If you saw a 30 year old that was older than you originally
envisioned but found that actor to be perfect, you could still cast
her. In a way, not mentioning age or age range at all is less limiting
than writing "late teens/early 20's".
I think mentioning age or age range doesn't matter in a script. I think
it can even cause issues like the one finderskeepers mentioned. Unless
it's essential to the story or not easily understood by my script I leave
out age. I have found that to be even less limiting in casting.