a lawful document written just in case u lose capacity (power to act or communicate), so that someone can make decisions for u. it can also be written if you want to extend someone the power to do tasks on ur behalf, such as a bunch of paperwork or business. 

SHA256man

What is the purpose of writing up a power of attorney? What is that for? I sincerely don't know what it is.

alter_native

Marriage is only monogamous if not registered with the state

Butterfinger

What is the purpose of writing up a power of attorney? What is that for? I sincerely don't know what it is. 