(a) No minor under the age of 6 years shall be permitted to engage in the door-to-door sales or street sales of candy, cookies, flowers, or any other merchandise or commodities.
(b) No minor under 16 years of age, permitted by law to engage in door-to-door sales of newspaper or magazine subscriptions, or of candy, cookies, flowers, or other merchandise or commodities, shall be employed in those activities more than 50 miles from his or her place of residence.