When a parent gets too old to work or drive or live alone, his or her children have to think long and hard about Mom or Dad's future. There are bound to be tough questions. Does Mom need extra help? Does Dad have to move elsewhere? Have they given thought to a will? Or a living will? Have you had a conversation with your parents about their future? If so, how did it go? What worked well? What didn't? If you haven't had it, are you planning to? Are you worried about it? Amy Dickinson, who writes the "Ask Amy" column, and Joseph Coughlin, director of MIT's AgeLab, join us, to take your questions.