lifestyles. Non-traditional family units can include single-parent families, families with one biological parent and a step-parent, blended families, gay marriage families, and families where parents are absent and grandparents or other relatives take over parental roles. While all these non-traditional family lifestyles might present social challenges for the children as well as create undesirable career experiences, the two units that warrant the most consideration are the single-mother and same-sex partner lifestyles. There are a number of ways that women become single mothers: divorce, outside marriage births, and partner death. Only recently did the United States see a spike in outside marriage births as well as divorce rates. In 30 years, the percentage of outside births has gone from under 20% to around 41%, with divorce rates being around 50%. Divorce rates peaked in 1980, at about 40% for first marriages; by the early 2000s the percentage had dropped to around 30%. Although the number of divorces is decreasing, they along with outside marriage births account for the growing single-mother population. Single mothers are faced with a number of challenges primarily resulting from low income. On average, single parents account for between 15 and 40% of income inequality, earning an estimated average of $32,597, less than half of what the average married couple earns. Women's incomes on average are lower than men's due to "occupational segregation". These statistics indicate that a vast number of single-parent children grow up in poverty. Studies have shown children growing up in poverty are 66% less likely to rise out of poverty. Single mothers, although working long strenuous hours at these low-paying jobs, are still unable to cope with the financial burden of childcare. With the burden of single-motherhood becoming more and more of a prevalent issue, one would think that it would begin to be taken into serious consideration by the public. However, progress toward gender integration has slowed, childcare expenses are on the rise, housing isn't getting any cheaper and health care is still expensive. Homosexuals have faced much harassment as well as segregation in the workforce community. Individuals of different sexual orientations have been criticized, segregated and physically harassed for decades even within the labor community, a place which being homosexual should not reflect upon how well one performs a job. In fact, "studies have shown that anywhere from 15 percent to 43 percent of gay people have experienced some form of discrimination