It is obtained through Court proceedings. The curators may be spouses, parents, children, in cases where the people mentioned are missing, the judge may choose another person as a curator or the representative of the institutions where the older person lives. The curatorship may be awarded on a temporary basis (Jusbrasil, 2018).

References:

Jusbrasil. (2018). Saiba o que é e como ocorre a Interdição de Idoso. Jusbrasil. https://beatriceekarlalopes.jusbrasil.com.br/artigos/573034226/saiba-o-que-e-e-como-ocorre-a-interdicao-de-idoso