You are actually incorrect in all accounts, including the suppose low % of the adult population never using the internet. Also this story is not 'news', its way old, it first appeared in some Greek news outlets back in November 4th, 2008 and most Greeks didn't even pay attention to it because of the major nation wide strikes hitting the country around that time, little green alien men were the last thing on most Greeks minds vs. unfavorable changes the government wanted to make and other national political scandals hitting the country during that time period.
Greece Hits EU Internet-Use Bottom 73 Percent of Greeks Have Never ...
Apr 24, 2006 ... The EU’s statistical agency also found that internet use among Greek students ... Greece also had the third-lowest rate of internet access by ... European counterparts in internet use, according to the Eurostat survey. ...
http://www.helleniccomserve.com/percentofgreeks.html - 13k