Essential and desirable aging in place features

I was recently reading an article on Builder Online. The article reported some of the results of a NAHB survey called What Home Buyers Really Want. The survey, performed in 2012, and released in May 2013 lists five aging in place features that were rated desirable or essential by at least half of the respondents. The top rated feature is a full bathroom on the main level, followed by doorways at least 3 ft. wide, hallways at least 4 ft. wide, non slip floors, and a zero step entry. At just under half are lowered kitchen cabinets and bathroom aids such as grab bars and shower seats. As time passes and the population gets older and older, we are nearing a tipping point. I fully expect see a day in  the near future when these issues will be at the forefront of all of our thoughts because the need for lifespan design housing will be great. I am working to be ready for that day. Will you be ready?