Yes, at the very minimum, on the way to an outright ban.
Smoking is one of the most deadly things that humans do. It is all about money and addiction and it hooks people when young and unable to think through the lifetime consequences. Raising the legal age is just one more intelligent step in wiping this cancerous habit out for good.
Here is a great article asking this question; http://www.thehealthsite.com/news/expert-committee-recommends-legal-age-for-smoking-to-be-increased-to-25-years/