I will start us off. I have been coming to NANOG for long before I had children, but these days do have 2 littles. My daughter turned 4 in January, and my son is now in kindergarten and is 5.5, he will be 6 in June. They occasionally get to say hi on the Sundays before NANOG when it is in Austin, however this most recent one we skipped that as my daughter was sick over the weekend.
Kids are great, but they sure are distracting. 
Having 2 kids (aged 5 and 7) forces me to be more mature, and manage time better.
I wonder how old kids have to be to understand what a network engineer does…?