Final answer:
It's an infraction to smoke in a car with passengers under 18 years old due to laws protecting public health and minimizing exposure to secondhand smoke.
Step-by-step explanation:
It is an infraction to smoke in a car with passengers younger than 18 years old. Smoking laws have been implemented to protect public health, acknowledging that secondhand smoke can be harmful to all individuals, especially minors.
In the United States, various regulations exist that define where smoking is permissible, with a particular focus on protecting children from the adverse effects of secondhand smoke. The government plays a vital role in ensuring public health and safety by enacting and enforcing smoking regulations to minimize exposure to secondhand smoke.