Purpose. The Town Board hereby finds and determines that buildings of two stories or more erected in the Town of Webster for the purpose of providing multiple housing units for senior citizens or those with disabilities or infirmities should be equipped with suitable elevators so as to facilitate the ability of such persons to move about freely within such building and to reduce the risk of injury as may result from the use of stairways by such persons. The purpose of this section is to protect the public health, welfare and safety of residents of the Town of Webster, especially those residing in multiple housing units covered by this section.