  This criterion of identity (and its variants) has been taken to fit particularly well with our practical concerns, both self-regarding  and other-regarding. For instance, what seems to matter for  self-concern and rational anticipation is that my  psychological life continue. Anticipation and self-concern are psychological states, as are their objects (future experiences), so a theory of identity that ties those states together by virtue of tying distinct stages of me together seems initially quite plausible. In addition, concerns having to do with moral responsibility are also about the relations between various psychological states – including intentions to perform actions, memories of past doings, desires and beliefs explaining actions, and so forth – and so if personal identity is a necessary condition for moral responsibility, the Psychological Criterion provides a plausible and satisfying account of that condition: I cannot be responsible for the actions of some person if I'm not the inheritor of that person's psychology.