Monkey See Monkey Do
The number one rule is to show by example, make sure you are seen to be using and promoting long strong passwords, you are not relying on screen time in class and the kids don't see you constantly with your phone in your hand.
Teach not Preach
Children are trend conscious, and are all exposed to different parenting styles, these two points together ensure children will all react very differently when being taught digital literacy, Oe may hanker to be a you tuber, while another may never have logged on to you tube. It is important you do not impart your value system and alienate a child from asking a question or sharing details.