Yoyo
I think you need to differentiate between promises and action.
A promise is like a thought with intention; action is acting on that thought. Many of us have well meaning intentions that are never realized because of inaction. IMHO, action signifies the intention of bringing that thought to fruition.
So, personally, I think a promise is fairly meaningless in the absence of action.
Stopping smoking is easier said than done. I wouldn’t take a promise so seriously unless there was action coupled with it (and even then…).