Are builders so busy building businesses that starting a family isn’t a priority?

Most of my classmates from elementary school, high school, and university have been married for a long time and have had kids for at least 4 – 5 years.

But none of them started a business. They got jobs, their shift ends at 5 on Friday, and then they go enjoy their free time.

And then there are founders trying to build a business.

About 70% of the people I know from this environment don’t have a family, even though at their age, someone might normally already have a teenager at home.

Which kind of makes sense if you're a founder:
– you’re trying to grow the company even in your “free” time
– you have fewer opportunities and less time to meet people
– if you’re a solo founder, you have to do everything yourself

[I’m not even talking about women who want to become founders; there’s also a biological time limit.]

Is it just my impression that this group of people has their life mission and priorities somewhere else?
Or am I just in a bubble?