Can anybody name a few successful high-growth startups that were started by people with these kinds of family obligations?

If it has happened before, that's evidence that it can happen again, but if it's never happened before, that's evidence that it may be harder or impossible to form a high-growth startup under obligations like those.

(Disclaimer: high-growth startups are not the only kind of business worth forming. The director of engineering of a slow-growth enterprise software company may have a higher quality of life than a co-founder at an unprofitable unicorn.)