I've posted this before but it seems relevant here to highlight the prejudice that people with families will sometimes face.

Ripped directly from a rejection letter I received:

"I think instead of making a more detailed offer, I should consider certain facts.

For starters, you have a family and that'll be the driving force behind all your decisions. Secondly, you will not be able to be here in the program with me. Ideally, I want someone who could be here though not necessary. More importantly, it's the family situation I consider. I've worked developers before with family and the company died largely because of that. I don't want to say that'll happen but I worry.

This other candidate is like me. No responsibilities except {COMPANY NAME}. That makes life less complicated. Based on this - nothing to do with skills - it's best that him and I work together. "

The program was one of the startup accelerators (not YC). He was right that my family would have been the driving force behind all my decisions. He was wrong in thinking that's a bad thing. I can't imagine a bigger motivator than my family. When you have kids, failure just isn't an option.