I interpreted that as concerning two different domains with respect to a Start Up (or any immature business, really). With respect to stability: Persons with l

I interpreted that as concerning two different domains with respect to a Start Up (or any immature business, really). With respect to stability: Persons with lots of frequently changing variables in their lives (e.g. frequent beginnings/endings to relationships, moving around, etc.) have less stability. Adding the instability that comes with a turbulent, chaotic tech start up just compounds the issue and taxes one's resilience even more, because inevitably one will have to pay attention to instabilities other than business related ones. With respect to responsibility: having kids, a spouse and other similar obligations (can) act as a tether and definitely act as dividers of attention. A spouse and children necessarily require attention that could otherwise be focused on the business. This is really much more of a problem for individuals who aren't already financially secure and depend on some relatively secure, stable income to support their lives. The common element in both cases is time and attention: living an unstable life increases the probability of something other than the business acting as competition for attention, and living a life with other responsibilities "baked in" guarantees competition for attention.