One definition of financial independence, living off of one’s investments and the income produces for the golden years, even if there were to be no further earnings.
A couple with a decent income between them can possibly bank one salary while living off the other partner’s income.
This is just a budgeting issue, where both names appear on all accounts. It is easiest when a wife’s paycheck is in the checking account for ongoing living expenses, while income streams generated by the husband go towards investment.
Most people might assume that without a healthy income this is not possible. No, that’s not true. It is possible to achieve financial independence even with far smaller income streams.