It is not possible to indicate precisely who belong to the category 'elderly'. Often the retirement age of 65 is used and sometimes the category ‘elderly’ even starts at the age of 50 (as in the ‘over-50s fair’). As the elderly stay healthy and fit longer, the lower age limit for the group of elderly road users is nowadays increasingly put at 75 years old. However, using rigid age boundaries does not take into consideration the fact that ageing is a process that does not begin at the same age for each and every individual, nor progresses at the same pace. There can be large differences in driving skills between people of the same age, as well as in their physical and mental abilities. It is very well possible that some 85 year-olds are in better shape than some 40 year-olds.
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