Controlling an addicted loved one’s access to money is a constant concern for the family. Some options exist to help ‘control’ their spending and these serve as a helpful roadblock. Ultimately, the best option is the CRAFT approach.
“Enmeshed” is a good word to describe the situation between your sister and her son. Enmeshed describes a pattern, years in the making, when a family member fixes and protects and tries to control the actions of a loved one who’s abusing substances….