have been removed. For example, English law used to treat married women as lacking the capacity to own property or act independently of their husbands (the last of these rules was repealed by the Domicile and Matrimonial Proceedings Act 1973, which removed the wife's domicile of dependency for those marrying after 1974, so that a husband and wife could have different domiciles). Minors The definition of an infant or minor varies, each state reflecting local culture and prejudices in defining the age of majority, marriageable age, voting age, etc. In many jurisdictions, legal contracts, in which (at least) one of the contracting parties is a minor, are voidable by the minor. For a minor to undergo medical procedure, consent is determined by the minor's parent(s) or legal guardian(s). The right to vote in the United States is currently set at 18 years, while the right to buy and consume alcohol is often set at 21 years by U.S. state law. Some laws, such as marriage laws, may differentiate between the sexes and allow women to marry at a younger age. There are instances in which a person may be able to gain capacity earlier than the prescribed time through a process of emancipation. Conversely, many states allow the inexperience of childhood to be an excusing condition to criminal liability and set the age of criminal responsibility to match the local experience of emerging behavioral problems (see doli incapax). For sexual crimes, the age of consent determines the potential liability of adult accused. As an example of liability in contract, the law in most of Canada provides that an infant is not bound by the contracts he or she enters into except for the purchase of necessaries and for beneficial contracts of service. Infants must pay fair price only for necessary goods and services. However, the British Columbia Infants Act ( 1996 c.223) declares all contracts, including necessities and beneficial contracts of service, are unenforceable against an infant. Only student loans and other contracts made specifically enforceable by statute will be binding on infants in that province. In contracts between an adult and an infant, adults are bound but infants may escape contracts at their option (i.e. the contract is voidable). Infants may ratify a contract on reaching age of majority. In the case of executed contracts, when the infant has obtained some benefit under the contract, he/she cannot avoid obligations