How can I make sure I am individually shepherding my children?

In this blog post, Brian Croft provides a great example of how a father can individually shepherd his children. I was challenged by the way that this role is given such a high priority, in terms of setting aside the time every night. 

http://briancroft.wordpress.com/2010/07/21/how-can-i-make-sure-i-am-individually-shepherding-my-children/