Thus, it makes sense economically for men to focus on their careers if the family's aim is to maximize income and provide adequate childcare. There is some support for Becker's assertion. After all, men's earnings increase and women's decrease when they have children. However, equally plausible is the argument that these trends result from the cultural norms that sway potentially high-earning women toward home rather than toward work. An additional explanation is that some women simply enjoy and believe that they are well-suited for family caregiving. The differential distribution of household work has significant implications. For example, most married mothers become economically dependent on their husbands, but the law does not grant them financial equality in marriage. This means that, in the case of divorce, mothers experience a dramatic drop in income. Moreover, the social safety net does not protect divorced or single mothers from poverty, and mothers are not eligible for unemployment insurance if they work part-time or at home. Clearly, the unequal distribution of housework and childcare has meaningful implications and warrants some discussion. The family factor, especially for married women, is one of the reasons that leads to more mobile inclination for women than men in job market. The stereotype forces married women to undertake more family responsibilities than men, so women have no choice but to relocate workplaces for fulfilling the family needs. Compared with men who have more freedom to decide their workplaces, to move frequently in working system is obvious a disadvantage for women to improve their positions or to earn more income. On the other hand, men are more willing to relocate workplaces when their wives have better income, but not their wives' careers themselves, which means the power in family can also be transferred through women create more economic value than their husbands. This is the progress for women to develop their careers in recent years. Another source describes the variety of women's careers in their lifetime as "snake-like", meaning they move from job to job through their whole career lives flexibly. Compared with challenge of flexibility, this research provides a new idea that some women actually gain benefits by developing their own business to fulfill family needs. Alternative family styles in relation to childcare and career experiences The structure of today's family has evolved over the past decades from the "traditional" married, heterosexual couple to an increasing number of alternative family