Is smoking at 19 the same effect as smoking same amt at 29?

Stupid at both ages. Smoking is just as stupid at 29 as it is at 19, and the health consequences are also potentially the same. Ten more years to learn how to be responsible for health choices, and no progress? Cruising for a bruising from life, i think. Show your intelligence and quit smoking!
Bad. The longer you smoke, the greater your risk of premature death. So starting at 19 & continuing daily use is worse than starting at 29. But as stated, both dramatically increase the risk of serious life threatening diseases. See your doctor for help with smoke cessation.