Chris

Of course it does.

Viewing via portable devices is being driven by kids because they don't own their own homes and more and more of their parents are realising there's no need to put a TV in their bedroom because the computer monitor plus Youtube or iPlayer does the job.

The great mistake people often mistake when reading demographic statistics is to assume the behaviour exhibited by a particular age group can be projected forwards in time. In actual fact, people's behaviour changes according to their age and other factors - in this case, once the kids are grown up, got their own house and take control of the TV in the living room.