How will raise the driving age to 18 affect the automotive manufators, auto insurance comp., & gas companies

Im writing a research paper on raising th driving age and im contained by need of some help near these topics. Please give alot of information , i have 2 more page to write about these.
Answers:
Insurance companies would lose that big check from parents sending in money so the kids can drive.
Manufacturers? I dont suppose it would affect them alot, since most 16-17 year olds drive used cars, not new ones. Only a idiot would buy a 16 year old a brand strange car.
Gas companies? Well, teens do alot of cruising, but in the long run i dont chew over they would notice much.
Put it this way, if the driving age be raised to 18, alot of parents would just enjoy to drive kids all over hell and back for 2 more years.
I dont infer the age needs to be raised, but i do reflect further restrictions need to be put in place.

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