This is a "stereotype" and may be the case some of the time, but definitely not the rule. I'm doing a product startup in fintech. Extremely high stress levels

This is a "stereotype" and may be the case some of the time, but definitely not the rule. I'm doing a product startup in fintech. Extremely high stress levels i.e. we've had 4 near death experiences in the first 3 years of our startup (one had to do with money running out, others more to do with specific business we're in). We've not just survived but improved! However there is no traditional work-life balance. I typically work 6 days/week and some/many others in the company do too. I have kids and working spouse but trade my time 50:50 with my spouse in terms of spending time with kids. Bottom line: Your mileage may vary, but just because a founder is married with kids is no guarantee of a 9 to 5 daily routine