False. Don't think of this as an "old" people's issue. It may be natural to link death and dying issues with old age, but that is a mistake when it comes to advance directives. Consider that perhaps the most well known landmark court cases those of Nancy Cruzan and Karen Ann Quinlan involved individuals in their 20's. The stakes are actually higher for younger persons in that, if tragedy strikes, they might be kept alive for decades in a condition they would not want.
An Advance Directive is an important legal planning tool for all adults.