Every year, more than 20 million people around the world report some form of mobility impairment. Individuals with minor, moderate, or substantial difficulty were aged between 59 to 67. This issue, however, is not unusual among young people. People with mobility disabilities have numerous transportation difficulties, which prevent them from participating in a variety of activities. A stairwell, in particular, is an insurmountable obstacle for wheelchair users.

Globally, more than 20 million people report some kind of mobility difficulty each year. The mean age of individuals with minor, moderate, or major difficulty ranged from 59 to 67 years. However, this problem is not uncommon in young adults. People with mobility disability experience many transportation barriers, which hinders their participation in various events. Especially, a staircase is an insurmountable challenge for those who use a wheelchair.