78% of households in this survey are Internet connected. Of those, 81% were on broad-band. This is a distinctly middle class area, of well educated people who you would expect to be substantial users of the Internet.
The 100 chosen participants in age order.
This table tells you about the age and gender of the most active Internet user in each house. In age order.
Let's look at them in age groups.
15 to 24 = 14 with 0 heavy users
25 to 34 = 19 with 2 heavy users
35 to 44 = 14 with 4 heavy users
45 to 54 = 12 with 3 heavy users
55 to 64 = 18 with 2 heavy users
65 to 74 = 10 with 1 heavy user
75 to 84 = 3 with 0 heavy users
You can see from this data that young people are not the big users of email. They may be big users of mobile phones instead. By young people didn't score highly on other parts of the survey either, even in video watching older people competed with them on even terms. Only on game playing did young people have a distinct advantage. (And then less than half of the group.)