I'm not from the us, but i do have these powers form my sister and my parents (and they do for me). We can for each other decide what medical procedures should

I'm not from the us, but i do have these powers form my sister and my parents (and they do for me). We can for each other decide what medical procedures should and shouldn't be done. In a extreme case that hopefully does not happen soon we may even decide life sustaining measures to be stopped. Where I'm from one can simply give such powers to another person.