Without this dynamic, there would be no such thing as Gift Shops, and dinky little stores that sell trinkets. Women use their rich husband’s wallets to bankroll failing business ideas. Ideas based on social status.
This accounts for a LARGE portion of female-owned businesses.
I might have to disagree with you on the “large portion” part of your assertion, if you meant that it was a majority.
Another incentive for “female-owned businesses” is the government-based incentive - easy loans, grants, tax breaks, etc, for “minority-owned businesses”.
Easy to put your wife’s name on the family business and get all those perks, now, isn’t it?