Although an international perspective would be in their own best financial interest, most people, wherever they may live in the world, do not have such an outlook when considering where to place investments.
People are indeed, creatures of habit.
They have their jobs, their homes, their pensions and virtually all of their investments in their home country, although the prudent approach would be to shop around the world economy for the best deal and the maximum protection. Aside from the stability and a better return some foreign investments guarantee, there are often strong domestic reasons why a specific country's citizen should consider putting assets into some form of foreign investment, even in one or more countries. The state of the your nation's economy is very important to you as an investor, but it is easy to be blinded by traditional faith in the value of your own currency, to have pride in your nation as a place to protect wealth based on its history. But it is critical to the success of any investor to learn from the past, but also carefully to assess the truth about your home country today. Your investments must be as safe as possible and that requires analyzing your national economy in the same dispassionate way a stock analyst would judge the reliability of any large corporation.