According to a survey conducted in December 2019, around 46 percent of Japanese smartphone and tablet users aged 70 years and above had disclosed their date of birth online. People in their sixties and seventies were the most likely to share their birthday on the internet. A breakdown of all surveyed types of information showed that the most commonly disclosed information among respondents was the user's gender.
Share of mobile device users who disclosed their date of birth on the internet in Japan as of December 2019, by age group
*Sample size of age groups:
13 to 19 years n=453
20 to 29 years n=817
30 to 39 years n=941
40 to 49 years n=1,134
50 to 59 years n=853
60 to 69 years n=563
70 years and above n=239
**Smart devices included smartphones and tablets.
Original question: "Have you registered or publicized your personal information (full name, date of birth, etc.) or private information (place of origin, academic background, hobbies, etc.) as information for things such as an internet service profile? Please choose those answers that apply."
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Information-technology Promotion Agency, Japan. (March 17, 2020). Share of mobile device users who disclosed their date of birth on the internet in Japan as of December 2019, by age group [Graph]. In Statista. Retrieved May 21, 2022, from https://www.statista.com/statistics/1187897/japan-share-mobile-device-users-disclose-date-of-birth-online-by-age-group/
Information-technology Promotion Agency, Japan. "Share of mobile device users who disclosed their date of birth on the internet in Japan as of December 2019, by age group." Chart. March 17, 2020. Statista. Accessed May 21, 2022. https://www.statista.com/statistics/1187897/japan-share-mobile-device-users-disclose-date-of-birth-online-by-age-group/
Information-technology Promotion Agency, Japan. (2020). Share of mobile device users who disclosed their date of birth on the internet in Japan as of December 2019, by age group. Statista. Statista Inc.. Accessed: May 21, 2022. https://www.statista.com/statistics/1187897/japan-share-mobile-device-users-disclose-date-of-birth-online-by-age-group/
Information-technology Promotion Agency, Japan. "Share of Mobile Device Users Who Disclosed Their Date of Birth on The Internet in Japan as of December 2019, by Age Group." Statista, Statista Inc., 17 Mar 2020, https://www.statista.com/statistics/1187897/japan-share-mobile-device-users-disclose-date-of-birth-online-by-age-group/
Information-technology Promotion Agency, Japan, Share of mobile device users who disclosed their date of birth on the internet in Japan as of December 2019, by age group Statista, https://www.statista.com/statistics/1187897/japan-share-mobile-device-users-disclose-date-of-birth-online-by-age-group/ (last visited May 21, 2022)
