How about: walkways and entries; wall plugs & light switches  – adequate lighting;  narrow hallways;    slippery floors; bath tubs and toilets; awareness indicators for phones and smoke detectors; maintenance free exteriors and landscaping, just to mention a few.

 All of these are COMPONENTS of Age-At- Home; but, Age-At-home, in it’s full definition,  is a life-style, how you use your home, design concept vs. structural design; how your home looks: its shape & style; parts & pieces.

To help you understand this life-style design direction, need to start with some history of housing’s structural & component “standards” and why they evolved as they have.