A legal guardian is a person who has been appointed by a court or otherwise has the legal authority (and the corresponding duty) to make decisions relevant to the personal and property interests of another person who is deemed incompetent, called a ward. For example, a legal guardian might be granted the authority to make decisions regarding a ward's housing or medical care or manage the ward's finances. Guardianship is most appropriate when an alleged ward is functionally incapacitated, meaning they have a lagging skill critical to performing certain tasks, such as making important life decisions. Guardianship intends to serve as a safeguard to protect the ward. Anyone can petition for a guardianship hearing if they believe another individual cannot make rational decisions on their own behalf. In a guardianship hearing, a judge ultimately decides whether guardianship is appropriate and, if so, will appoint a guardian. Guardians are typically used in four situations: guardianship for an incapacitated senior (due to old age or infirmity), guardianship for a minor, and guardianship for developmentally disabled adults and for adults found to be incompetent. A family member is most commonly appointed guardian , though a professional guardian or public trustee may be appointed if a suitable family member is not available. Guardianship for an incapacitated senior typically arises when someone determines that a senior has become unable to care for their own person and/or property. In fact, most alleged wards are elderly (Ms = 76–82 years), many of whom resided in a care facility and had been diagnosed with a neurological impairment such as dementia. Typically, a precipitating incident prompts a professional, family member, health care worker, or clergyman to initiate guardianship proceedings. While guardianship intends to protect and support incapacitated seniors unable to care themselves or engage in the activities of daily living without assistance, guardianship sometimes results in financial exploitation of wards.