Aging in America today means a lot more than making changes to your living space. The original retirement age set forth by the government in 1935 was 65 -- because back then, average life expectancy was only 62. Now, it's quite likely we'll live 20 years past retirement age or more. In other words, the population of the USA is rapidly changing, as this video explains that there are more people in the US over the age of 60 than under the age of 15. That means neighborhoods, transportation, work expectations, and even social security will have to adjust to meet these new needs.