Banking on the Future

In a small town in a remote province of China, a man on the verge of retirement has come up with quite an intereting idea. He has created the concept of "Age Banks". China is going to see a senior boom greater than that of the United States with one third of their population being over the age of 60 in the next forty years. Age Banks are designed with caregiving in mind. A volunteer can go into an Age Bank and spend time with an elderly member of the population who may not have family or loved ones to assist them. The hours that they spend volunteering is recorded and placed into their "bank" to be used on care towards themselves when they are the ones needing the assistance. Their work done shopping, cleaning, obtaining medicines, etc. is logged into a personal data base and will conceptually assist them at a later date. Would a program like this work in the United States? Would our society of what's in it for me volunteer time to the elderly if we didn't see an immediate return? It may be a question that we need to ask ourselves if this concept catches on.