Double income without children means that both husband and wife have income but no children. Three key words: married couples, both with income and no children.
Therefore, a single unmarried person is not called a dink, but a bachelor.
It's not that Dink doesn't intend to get married all his life, but a person who doesn't get married.
One or both childless couples have no job, no income and no dink, which is called unemployment.
Married couples cry and shout that they want children, but they can't bear what they can't be born. It's not dink, it's infertility.
Do you understand?