A digital citizen refers to a person utilizing information technology (IT) in order to engage in society, politics, and government. K. Mossberger, et al. define digital citizens as "those who use the Internet regularly and effectively".
https://en.wikipedia.org/wiki/Digital_citizen
This is an interesting presentation about the topic of Digital Citizenship
Link:https://docs.google.com/presentation/d/13rT6fM9lTpK0aAGrt6kCakHxLw_Rmv8AwuWP8x334G8/edit?usp=sharing
RESOURSES
https://www.betterinternetforkids.eu/
You can also find an interesting toolkit online
An interesting report online about how Italian kids use the web
http://paroleostili.com/app/uploads/2018/01/EU-Kids-Online-Italy-report-Gennaio-2018-2.pdf