A will is a good opportunity to sit down and express your wishes. Even with little assets, there can be confusion and family conflict if parents don't make their wishes known explicitly. A will can be a gift that an older parent can give to their family, by explaning exactly what they want. I also encourage that the will can be a way to start family conversations about other aging issues. It covers such services as nursing homes, assisted living, adult day services and in home care.
Policies vary widely in terms of what they offer, and what they cost.
Seek advice from others including family members and attorneys before purchasing. The older you are, the more it costs. The younger you are, the lower your premiums are, but the longer you pay. It is important that if you feel the situation is unsafe for your parent or family member, that you let them know firmly but caringly that you feel you must do something to help. Having family conversations long before a crisis hits, can help avoid having to face this circumstance.