Driving Age?

hi

i was on value plus site and this was the conditions

1. Qualification: Renter's or driver's minimum age 21 years old for car groups A, B, C and 25 years old for cars of other groups.
   
   
2. Driver's License: A valid driver license held for a least one year is required.
   
   
3. Minimum Rental: One day. Every hour in excess is calculated at 1/5 of daily rate.
   
   
4. Traffic Fines: Tickets and attached administrative sanctions resulting from any violation of the Greek Traffic Law during rental period are borne sonly by the renter.
   
   
5. Deposit: No deposit required.
   
   
6. Insurance: All value plus vehicles are insured against liability to third parties for death or injury or property damage.
   
   
7. Collision damage waiver (C.D.W.): Customer may obtain collision damage protection by paying 7,34 Euro per day for car groups A, B, C, 10,27 Euro per day for car groups D, Dl, E, El and 11,74 Euro for car groups J and M provided also that the Driving Code was not violated. Damages to tires, windows and underneath the car are not covered by the C.D.W. insurance coverage.
   
   
8. Super C.D.W.: The renter's responsibility for excess charges in vehicles is wavered at a daily charge of 2,35 Euro for groups A, B, C, D and 3,52 Euro for groups E, F, G, H.

this is what i read

alison