I'm not sure what this question is indicated but I will try my best to explain it the way I understand it.
Explanation:
Jack woke up extra early to make breakfast for this whole family. If Jack wore to wake up late the family would have already made breakfast so instead of making the breakfast he would have woken up to it already made.
Say if Jack hadn't woken up at all, the morning for this family would likely change dramatically.
So the fact that jack woke up, his family had something to eat without having to make it.
