For women who also want to have children at the same time as co-founding a startup, I think it's important not to underestimate how difficult this is.

When my wife was first breastfeeding I timed how long she spent breastfeeding and changing nappies and bathing the young baby. It was LITERALLY over 9 hours per day (timed to the minute). To think that it's possible to ALSO run a startup at the same time is in my opinion crazy. With older children it's a lot easier but still difficult.

I have several female friends who are also successful entrepreneurs. Some seem to make it work with their family life, but my experience is with most that they have a very hard time and that it often devastates their family life and relationships.

So yes there examples of women who run a company and also have young children, but I think they are the exception rather than the rule.

For women who do not want to have children, or who are not going to have children for many years in the future, no issue.