My parents were children of the Great Depression and, like many people of that era, they were and are careful with money. While extraordinarily generous to their children, grandchildren and to their beloved charitable causes, spending money on a luxury just for themselves still requires breaking decades of money muscle memory. Surveys during the 1960s showed that people who were young during the Great Depression were not only, like my parents, extremely careful with money but also quite risk averse. Not surprisingly, this aversion to risk made this generation much less likely to invest in the stock market.