 Even so, in some legal jurisdictions, like Britain, the term “capacity” (or “decisional capacity”) is usually taken to be a legal one (Tan &amp; Elphick 2002). On the other hand, in the United States, it is the terminology of “competence” (or “mental competence”) that is often said to carry legal connotations and authority (Buchanan 2004; Berg, Appelbaum, &amp; Grisso 1996). None of this is very helpful, since as soon as we switch jurisdictions or engage in comparative work, terms change.