I'm going to suggest to my mom to spend less money on cigs
Why would you do that? Do you want her to spend more money on other things?
I want to help her quit smoking.
It is good to care about your moms health. If she keeps smoking she might end up with COPD or cancer.
My mom doesn't need to smoke so much. She smokes sixteen cigarettes a day and she has been smoking for 20 years.
That is a lot of smoking, no wonder you want her to stop. Hopefully it isn't too late for that. Cancer and other illnesses could still be in her system now but it's never to late to stop.