Nearly three-quarters (73%) of people would inform the authorities if they were concerned about driving standards of elderly friends or relatives they know, according to a latest survey.
The Institute of Advanced Motorists' (IAM) survey also revealed that almost seven in 10 back the idea of re-testing motorists older than 70.
However, the survey of 1,628 people, including some IAM members, showed that 77% believed young motorists posed more risk to road safety than older drivers.
Neil Greig, IAM director of policy and research, said: "It is good news that most drivers are aware that young drivers are the demographic most in need of help, but worrying that the mandatory retest has a fairly high level of support."
He further said: "The IAM believes we need to reassure the public that older drivers do not represent a disproportionate risk.
"A total of 8% of drivers are over 70 and they are involved in around 4% of injury crashes. But, 15% of drivers are in their teens and 20s and they are involved in 34% of injury crashes."
"Mr Greig said that asking motorists above 70 to take driving test again "would be a mammoth administrative task with little road safety benefit".
