The major distinction between gay or lesbian families and heterosexual families is discrimination.
Discrimination is an unfair distinction between people based on a group, class, or another category to which they belong or are perceived to belong. People may be discriminated against based on race, gender, age, religion, disability, gender orientation, and other categories. Discrimination occurs especially when an individual or group is treated unfairly and worse than other groups because of their actual or perceived affiliation with a particular group or social category. This limits the members of one group from the opportunities and privileges available to members of another group.
Discriminatory traditions, policies, ideas, practices, and laws exist in many countries and institutions in all parts of the world, including areas where discrimination is generally neglected. In some places, schemes such as quotas have been used to assist those believed to be victims of current or past discrimination. These attempts are often controversial and are sometimes referred to as reverse discrimination.
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