A recent publication, presenting a survey of about 5,000 young people from 4 countries (France, UK, Spain and Germany), is:
Lusoli, W., & Miltgen, C. (2009). Young People and Emerging Digital Services. An Exploratory Survey on Motivations, Perceptions and Acceptance of Risks (JRC Scientific and Technical Reports; EUR 23765 EN). Sevilla: EC JRC IPTS. http://ipts.jrc.ec.europa.eu/publications/pub.cfm?id=2119
It surveys attitudes and behaviours with electronic identification systems. They found that young people were aware and concerned about risks, although they have low awareness of data protection laws and varying understanding of different kinds of technology, and it also identifies young peopel as "Web 2.0 experts". However, there were different attitudes and behaviours in different groups by country/ gender.
Photo by Sheila Webber, Euphorbia, March 2009