[twic]

In the UK, people over 60* get a pass which lets them use buses for free. Some of them have used this to travel considerable distances:

http://news.bbc.co.uk/1/hi/magazine/7324086.stm

https://www.telegraph.co.uk/news/uknews/road-and-rail-transp...

* Correction, not 60, "female state pension age", which is currently 67; thanks for the correction, tonyedgecombe: https://www.gov.uk/apply-for-elderly-person-bus-pass

[tonyedgecombe]

67 in Oxfordshire.