A more thorough explanation:

Term: Facile
Definition: A person who is mentally deficient and easily influenced by others to the point where they require legal protection, such as a guardian.
Examples: A person with a severe intellectual disability who cannot make decisions for themselves and is easily swayed by others would be considered facile. They may need a guardian to make important decisions for them, such as medical treatment or financial matters.
The term "facile" is used in Scots law to describe individuals who are vulnerable and require legal protection due to their mental incapacity. The examples illustrate how a person who is facile may be unable to make decisions for themselves and require the assistance of a guardian to ensure their well-being.