This initiative is not about stopping existing smokers.  It is about discouraging young people from starting in the first place.  Therefore the question "would this make you stop" is irrelevant.  Teenagers mostly start to look cool and this is strongly associated with the packaging and therefore image of the brand.  If you remove the branding, cigarettes are just in a brown box.

This is the real reason the tobacco industry are so terrified of this legislation. They constantly need to replace the customers who die with new ones, preferably young who get drawn into a lifetime of addiction.  If young people don't take up smoking their customer base will eventually disappear. It won't come a moment too soon.