Experts are calling for additional training for younger motorists after a study found half of accidents involving them are down to errors at the wheel or poor reactions.
The Institute of Advanced Motorists says drivers and riders aged below 20 have a 15% greater chance of crashing than their older counterparts due to mistakes or lack of good judgement on roads.
The road safety charity's study found that accidents due to "error or reaction factors" fall to 42% among motorists in their 20s and down to 33% among those in the 40-60 age group.
Younger drivers are also likely to be more involved in crashes because of rash driving, with 14.5% of accidents due to loss of control and 10.5% due to going too fast in unsuitable conditions.
Speeding accounted for 6% of the crashes and applying brakes suddenly for another 5%.
IAM chief executive Simon Best pointed out that while drivers aged 17 to 25 make up just 15% of the driving population, they account for 30% of all accidents and 40% of insurance claims.
"It's clear that handing a driving licence over without offering further help is putting far too many young people at unacceptable risk," he added.
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