An elderly person is a person aged 65 or over according to the definition of the European Union. At EU level, about one fifth of the population is elderly. Life expectancy has been increasing consistently in the last few decades. The impact of this trend on overall mobility demand is yet unclear, in part because elderly people are increasingly mobile. Even so, the natural ageing process is accompanied by a gradual deterioration in physical and psychological traits.

The increasing digitisation of mobility systems is another relevant aspect. The fast pace of technological development is known to exclude those less tech-savvy, which is common among elderly people. Finally, these demographic changes pose substantial challenges to authorities financing public transport services.