No, you cannot start driving at the age of 14 in Ohio. Ohio law states that the minimum age to start driving legally is when you are 15 years and 6 months year of age. In OH you can obtain a temporary permit if you are at least fifteen years and six months of age so at fourteen (14) you would be too young to get your temp (temporary permit) and be able to legally operate a vehicle with a supervising adult driver.

To get your temporary permit in Ohio you must take the driver knowledge test and vision screening at the driver license examination station.

In Ohio the permit holder must be accompanied by licensed parent, guardian or certified driving instructor who actually occupies the seat beside the driver. The Ohio license driver must be the permit holder’s parent, legal guardian or a certified driving instructor. Once the permit holder is 16 years of age he or she may drive with a valid licensed driver 21 years of age or older.

A temporary permit holder must complete 24 hours of classroom instruction and 8 hours of driving with a certified instructor. A permit holder must also obtain 50 hours of driving experience with at least 10 hours at night, certified by the parent. These hours are in addition to the driver education requirement.

Other restrictions on a temporary license and then probationary license (the next step in the graduated licensing process in Ohio) include:

• Probationary driver license holders under the age of 17 will not be permitted to operate a motor vehicle with more than one person who is not a family member in the vehicle, unless accompanied by the license holder’s parent, guardian, or legal custodian. Studies conducted by the Insurance Institute for Highway Safety have shown that one passenger doubles the risk of a fatal crash among teen drivers, two passengers triple the risk, and three or more passengers increase the risk by more than six.
• Probationary driver license holders between 17 and 18 years of age will be restricted from driving between the hours of 1:00 a.m. and 5:00 a.m. unless the holder is accompanied by a parent or guardian, with the following exceptions: an emergency situation, driving to or from a school activity, or driving to or from work. Travel to or from work is permitted provided the teen has written documentation from the employer.
• Probationary license holders under the age of 17 are prohibited from driving between 12:00 a.m. (midnight) and 6:00 a.m. unless accompanied by a parent or guardian with the same exceptions as above. This is a change to the previous restriction of 1:00 a.m. to 5:00 a.m.
• Permit holders under the age of 18 will be prohibited from driving between the hours of midnight and 6 a.m., unless accompanied by a parent, guardian, or legal custodian who holds a valid license. This is a change to the previous restriction of 1:00 a.m. to 5:00 a.m.
• If a probationary driver license holder under the age of 17 is convicted of having committed one moving violation during the first six months of having a driver license, the person must be accompanied by a parent or guardian whenever operating a motor vehicle during the six-month period commencing on the date on which the person is convicted of or pleads guilty to the moving violation or until the person attains the age of 17.
• Safety belts must be available to all passengers, and everyone must be buckled up. This applies to all Temporary Permit holders and those Licensed Drivers under age 18 

For more information about how to start the licensing process in Ohio, once you are old enough, contact the Ohio Bureau of Motor Vehicles. Keep in mind that if you do try to drive before you get your permit you can be cited by law enforcement.

Ohio Revised Code (ORC) 4507.02 states in part that no person shall permit the operation of a motor vehicle upon any public or private property used by the public for purposes of vehicular travel or parking knowing the operator does not have a valid driver’s license issued to the operator by the registrar of motor vehicles. Whoever violates this division is guilty of a misdemeanor of the first degree.

Also in Ohio it is against the law for a relative to allow you to drive their vehicle while you are unlicensed. ORC 4511.203 discusses this which is termed wrongful entrustment of a vehicle. Wrongful entrustment is defined as the offense of permitting a suspended or unlicensed driver, or a driver with no proof of financial responsibility, or a driver under the influence of drugs or alcohol to operate a vehicle.

Section C of this part of OH law states whoever violates this section is guilty of wrongful entrustment of a motor vehicle, a misdemeanor of the first degree. From the list we have found on one Ohio court's site it states that a conviction of a first offense of wrongful entrustment charge can come with the penalties of incarceration of up to 180 days, fines up to $1000, a mandatory class 7 suspension, immobilization of the vehicle for 30 days and impounded plates for 30 days.

So while you may want to start to learn to drive at the early age of 14 doing so could get yourself and the owner of the car you are driving cited by police and very harsh penalties. When you are old enough to drive and have your permit or license then your parents will need to inform their insurance company to make sure you are properly covered by their auto insurance policy.