My thoughts exactly, if we would focus only on computing industry than I'm pretty sure the avarage age would be much lower, and because the avarage age of getting married is near 30 (at least in US), the number of married entrepreneurs, let alone with children, would be also significantly lower. Another thing is that industries such as aerospace or electronics are much harder to break through, you need much much more experience, and the knowledge isn't as easily obtainable as for computing.
