Family law encompasses a wide range of legal issues related to families, including marriage, divorce, child custody, adoption, and domestic violence. Its primary purpose is to regulate the rights and responsibilities of family members, promote the welfare of children, and protect the rights of individuals within a family.

Polygamous families, in which one person is married to multiple partners, are not recognized by law in most countries. Nuclear families (consisting of a married couple and their children), extended families (including grandparents, aunts, uncles, and cousins), and blended families (formed when two single parents with children from previous relationships marry) are all legally recognized family structures.

In most states in the United States, the legal age of consent for marriage is 18 years old. However, some states allow minors to marry with parental consent at a younger age, typically 16 or 17 years old.

A prenuptial agreement, also known as an antenuptial agreement, is a legal document created before marriage that outlines the rights and responsibilities of each spouse in the event of divorce or death. It can include provisions related to property division, spousal support, and inheritance.

Divorce is the legal process by which a married couple legally ends their marriage. It involves the dissolution of the marital bond and the division of property, debts, and parental responsibilities.

Child custody refers to the legal allocation of parental responsibilities and decision-making authority for a child after divorce or separation. It can be divided into physical custody (where the child lives) and legal custody (who makes decisions about the child's upbringing).

A divorce decree is a legal document issued by a court that正式地ends a marriage. It outlines the terms of the divorce, including child custody, spousal support, property division, and any other relevant matters.

Spousal support, also known as alimony or maintenance, is the legal obligation of one spouse to provide financial support to the other during or after a divorce. It is intended to ensure that both spouses have adequate financial resources to maintain a reasonable standard of living.

The principle of equal protection under the law ensures that both spouses have equal rights and responsibilities in a marriage. This includes the right to own and control property, make contracts, and pursue a career, as well as the responsibility to contribute to the family's financial support and well-being.

Equitable distribution is the legal principle that governs the division of property and assets between spouses during a divorce. It aims to divide the marital property fairly and equitably, taking into account factors such as each spouse's contribution to the marriage, their earning capacity, and their needs.

A parenting plan is a legal document that outlines the terms of a child custody arrangement, including visitation rights and decision-making authority. It is typically created by the parents themselves, with the help of a mediator or attorney, and is then approved by the court.

Child support is the legal obligation of a parent to provide financial support to their child. It is typically ordered by a court and is based on factors such as the parent's income, the child's needs, and the cost of living.

The principle of the best interests of the child is a legal principle that guides decisions about child custody and visitation. It requires courts to consider the child's physical, emotional, and psychological well-being when making decisions about their living arrangements.

Termination of parental rights is the legal process of ending the parental relationship between a parent and their child. It is typically used in cases of severe neglect, abuse, or abandonment.

Bodily autonomy is the legal principle that a person has the right to make decisions about their own body, including reproductive choices. This includes the right to choose whether or not to have children, the right to use contraception, and the right to have an abortion.