The age at which it's legal to buy tobacco in England could rise from 16 to 18, if the government goes ahead with plans it has been thinking about.
Campaigners say making the age limit the same as that for alcohol would cut the number of under-age smokers.
The government have promised to look at their arguments, but haven't made any decisions yet, and it's not likely the law will change in the near future.
In Scotland, MSPs are already looking at raising the minimum legal age to 18.
However, some people say the new plans don't go far enough, and that the government should bring in a total ban on smoking in public places.