Hi Health.
While literally one can quit smoking any time. The implications that at any time it would all good to quit, is not a good recommendation.
Someone does not have forever to quit, so to speak. There is a point where it would be chas veshalom too late.
And telling an addicted person something where they feel they can procrastinate a bit alluding to the point there is “always” time, is misleading and not so correct, and actually feeds into the addicts inclination to postpone quitting.
The message should be to quit now. Even if that message has to be repeated later, and later again. ….quit now.