The problem of age in regards to technology use is straightforward. Whether due to a lack of skills or a lack of interest, older Americans simply do not use the internet as much, or as pervasively, as younger Americans. This makes sense. Younger generations are born into a technologically diverse atmosphere.
This chart illustrates the fact that older generations of citizens use technology less. The drop-off is most severe among people over the age of 65.
It's also interesting to note that while, for example, 88% of Americans aged 50-64 are using the internet at home, they may not be using it as frequently as younger people.
We can learn from the digital divide that even among those who have access to the internet, skills may be severely lacking, deepening digital inequality between these groups. In other words, just because someone has access to the internet doesn't mean they're using it productively.
This can become a significant issue in schools that have a high population of older teachers, as indicated in one of the following scenarios.
Chart Info via Pew Research Center:
http://www.pewinternet.org/data-trend/internet-use/latest-stats/