My disabled child is about to turn 18. Am I automatically able to make decisions for them when they turn 18?
No (except for limited exceptions). In New York, parents are the natural guardians of their children until age 18. However, once a child reaches 18, even if they are developmentally or intellectually disabled, a parent cannot automatically make decisions for their adult child. Guardianship is often necessary for developmentally and intellectually disabled adults who do not have capacity to manage their own affairs without assistance.