Another alternative is to design your startup around a very low burn rate and change nothing else in your life. I mean, if it is going to take 5-10 years as the blogger claims, what's 8-12 years if you get to tick all the other boxes in life?
To make the point clear: children raised by young and growing parents and different from children raised by old and established parents. Slow startups are different from fast startups. No judgement, they are just different. But the premise that a fast startup is the only way to do a startup is false. It's just choices for different outcomes.
My parents have not come close to being financially recovered relative to later-parents a decade after we've all left the house. The delay you are talking about compounds to absolutely massive differences in my experience. Trying to multi-task both the other "life" check boxes and your work is going to have large hidden costs on work because of these compounding advantages.