In the UK im legal to smoke, however in Japan id be underage. If I were to visit would I be allowed to smoke (if I bring my own smokes from the UK)? I have been smoking regularly for 3 years. I recently moved to Australia and now have difficulty smoking. I have a blocked nose, irritable throat, and spitting reflex. I'd been on one smoke a day for the last two years. Now my intake is 9-10 a day. I'm 25. Smoking shouldn't be this bad for me right?