I cannot give you figures on the browsing capability. However, I know there was an experiment on that somewhere in the world. I forgot the name of the city, but I can tell you about the experiment. The idea was to get seniors to surf the Internet through social support. So one, two or three people from a certain community were trained first. They then became catalysts for bringing others of the same age to the Internet.
On February 16th, 2017. See this statement in context.