In 2015, some business startups were offering the service of transferring money in the form of bitcoins among individuals and businesses in developing countries. At the same time, an article in the Wall Street Journal noted that in the United States, "Most ordinary consumers remain wary of using an unproven, six-year-old digital currency that many associate with illicit drugs, extreme price fluctuations and security risks." Why might using bitcoins be more attractive to individuals and firms in developing countries than to individuals and firms in the United States?