(CBS) – Smokers who light up in a vehicle where young people are present could face stiff fines, if a state lawmaker has his way.

Legislation proposed by state Sen. Ira Silverstein, D-Chicago, would make it illegal for an adult to smoke in a vehicle with children under 18 inside.

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Fines could go as high as $100.

“They can smoke in their cars but not with minor children. Why subject these young children to the smoke?” says sponsoring Sen. Ira Silverstein, D-Chicago.

Silverstein says he wants to minimize the health dangers of second-hand smoke to kids.

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CBS 2’s Mike Parker talked with people in Bridgeport about the idea. Few disagreed with it — even smokers.

“I’m a smoker. I don’t believe that the kids should be getting my second-hand smoke,” Jerol Barouski says.

Silverstein says a half-dozen states already have a smoking ban for cars with kids inside, and at least a couple of others are considering such a law.

Under the proposed law, a police officer could not stop a vehicle solely because the driver is seen smoking with kids in the car. The stop would have to involve some other traffic violation as well.

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Convertibles with the top down would be exempt.