I don't think there is ever a 'time' that happens and you feel you should stop writing. Generally I feel what happens is that RL and other pursuits get in the way more. Gradually you find yourself unable to 'make' time to write, or you just never 'feel' like writing.

The other factor that can come to play is the motivation for writing has changed. In other words, that which you got out of writing is no longer there. The satisfaction and fullfillment isn't what it used to be.

I doubt if someone who has gotten pleasure out of writing in the past is ever 'done'. Merely, a writer runs into times when writing isn't a priority passion. One goes on a hiatus.

Tank (who thinks CC should put such silly thoughts out of her head)