They are tall enough to press elevator buttons, open doors and pull a wheelchair out of danger should the battery die or their companion have a seizure etc.. (nextdaypets.com)
It also just feels odd not to have elevator buttons within the elevator. (uponarriving.com)
Poor maintenance, whether it's a broken elevator button light or trash in the parking area, can have a very negative effect on how a tenant feels about a property. (realtormag.realtor.org)