How they see their Generation Z peers is quite different from their own self-identity. They view their peers as competitive, spontaneous, adventuresome, and curious—all characteristics that they do not see readily in themselves. In addition, some authors consider that some of their competencies, such as reading competence, are being transformed due to their familiarity with digital devices, platforms and texts. In 2016, the Varkey Foundation and Populus conducted an international study examining the attitudes of over 20,000 people aged 15 to 21 in twenty countries: Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Israel, Italy, Japan, New Zealand, Nigeria, Russia, South Africa, South Korea, Turkey, the United Kingdom, and the United States. They found that most important personal values to these people were helping their families and themselves get ahead in life (both 27%), followed by honesty (26%). Looking beyond their local communities came last at 6%. Familial values were especially strong in South America (34%) while individualism and the entrepreneurial spirit proved popular in Africa (37%). People who influenced youths the most were parents (89%), friends (79%), and teachers (70%). Celebrities (30%) and politicians (17%) came last. In general, young men were more likely to be influenced by athletes and politicians than young women, who preferred books and fictional characters. Celebrity culture was especially influential in China (60%) and Nigeria (71%) and particularly irrelevant in Argentina and Turkey (both 19%). For young people, the most important factors for their current or future careers were the possibility of honing their skills (24%), and income (23%) while the most unimportant factors were fame (3%) and whether or not the organization they worked for made a positive impact on the world (13%). The most important factors for young people when thinking about their futures were their families (47%) and their health (21%); the welfare of world at large (4%) and their local communities (1%) bottomed the list. "The Economist" has described Generation Z as a more educated, well-behaved, stressed and depressed generation in comparison to previous ones. In September 2018, Jean Twenge saw smartphones and social media as raising an unhappy, compliant "iGen", which she described as the generation born after 1995. Mental depression has been said to be more common among Generation Z than any previous generation, with increased technological and online dependence and decreased face to face interaction as a key cause. According to the aforementioned study by the Varkey Foundation, youths were overall happy with the states of affairs in their personal lives (59%).