That's a cool job!!!
On the other hand, I don’t have children but like having the rest of the day available, and it’s great to not necessarily be working when most businesses are open. I’d call that freedom pretty cool, especially if you’re in an area where that saves you commute time in rush hour.
I respect individuals who value time with their kids in addition to having a serious career. My father was too busy chasing C-suite positions and running Iron Man races to spend time with his six kids.
Of course someone who has only worked salary without concern for billable time may never have experienced this. But even for salaried employees if your employment agreement says 40 hours, that does not include lunch breaks. Few employers in tech care because bean counting hours doesn't increase performance for creative types or knowledge workers.