My family is taking the brunt of the impact of my project. My 3 kids are a bit older, youngest is 8. My wife is doing virtually all the parenting and household management. My weekends and evenings are written off to coding, but the biggest sacrifice if from my wife and kids.
When you have a family don't underestimate the impact that running a startup has on them.
I only hope this turns out not to be a false economy.