[watty]

Having kids greatly reduced my free-time to work on side projects (or actual work). Getting married reduced my ability to move anywhere anytime or take risks freely. Buying a house with endless projects has also reduced my free time. If I was single and without children I'd probably be making more money at a different company. But I wouldn't be as happy.

Every choice that reduces your time spent developing affects your life as a developer. It doesn't mean you can't be a rockstar as a single dad with 5 kids but it may be harder. Ultimately you have to balance things that make you happy and work.