The person stays the principal
The starting rule never changes: wherever a person can decide for themselves, they do. Guardianship is the exception—defined for a purpose, not a blanket transfer of control. And on every record, the person being helped and the person helping remain two distinct parties: a guardian acts *for* the person, never *as* them.
A web of duties, coordinated
Healthcare shows the pattern. A person might have several specialists—cardiology, endocrinology, allied health—each holding a duty inside their own field, usually coordinated by the GP. If that person's capacity to make decisions is impaired, a guardianship relation can be declared to curate their needs—but it is scoped to what is needed, visible in the record, and it ends when it is no longer required. The person's own choices still come first wherever they can be made.
Growing up
Children show the other pattern: guardianship that shrinks as capacity grows. An infant needs near-total parental guardianship; a teenager needs far less. Along the way, other adults hold narrow, declared duties—a childcare worker during care hours, a teacher at school, a coach on the field. Each holds responsibility for a slice of a child's life, not the whole of it—and the system can express exactly those slices, instead of an all-or-nothing handover.
The rules that make it safe
- Scoped—a guardianship relation is declared for specific purposes, not everything.
- Visible—actions taken under it are recorded as the guardian's acts on the person's behalf.
- Revocable—it can be ended, and it expires when its purpose ends.
- Distinct—helper and helped are never blurred into one identity.
That last rule is what separates guardianship from sharing a password: impersonation leaves no trace; guardianship leaves an honest one.