The proponent of legislation designed to create a generation of non-smokers has indicated he is open to a compromise with the State Government that would raise the legal age to buy cigarettes to 25.

Independent MLC Ivan Dean drafted a private members bill that would ban the sale of cigarettes in Tasmania to anyone born after the year 2000.

At the same time, the State Government is considering lifting the legal age to buy cigarettes from 18 to 21.

Mr Dean's bill was conditionally backed by a parliamentary committee examining the legal implications, but Mr Dean said there was no point proceeding if it was doomed in the Parliament.

Instead, he was hopeful discussions with the Government will lead to a compromise.

"I would prefer to go to through with a position they can feel will be given support in the other place, and I think we can hopefully reach a position where that can happen," Mr Dean said.

He does not believe restricting sales to over 21 year olds goes far enough.

"There is a lot of medical evidence to show the brain is not properly developed until the age of about 25," Mr Dean said.

"If we're going to say people should not be able to access cigarettes until they are fully developed brain-wise, then maybe 25 would be the way to go."

Bill could be debated next month

Mr Dean said he would bring the bill on for debate as soon as possible, depending on the outcome of negotiations.

On Wednesday, an upper house committee examining the bill released its findings, including that there was no "significant legal impediment" to achieving the aim of a "tobacco-free generation" but urged caution.

"The Parliament should take a measured and cautious approach in considering a bill which could limit or 'extinguish' fundamental rights relating to age, equality and liberty," the report found.

The report also raised some potential practical issues such as online sales and the impact on tourists.

Mr Dean said he would consider the findings, but did not think it was unusual for tourists to abide by different rules in different restrictions.

He cited the United States restrictions on buying alcohol until the age of 21.

"If you go to America and you're a 19 year old or a 20-year-old there's no law there that allows you to purchase alcohol or drink alcohol in public places," he said.