This solution can be installed:
in a private home (to make the rooms of the house more accessible or to facilitate the mobility of people with disabilities in wheelchairs), thus improving the comfort of the home itself
in a condominium (one classic situation in the UK/Germany is the presence of three or four steps in front of the condominium’s ground floor entrance, which can be easily resolved with a platform lift)
in a shop/office building/restaurant, in order to overcome small height gaps.