Nowadays, we have already reached a time social media are increasingly popular. With billions of users every day, Tik Tok (become) the most popular social media for teenagers since 2016, as it makes it easier for them to share daily life with others. While it comes with many (benefit) like self-expression, the development of talents, it also has some problems like trolls, cyberbully and mental health issues. More and more teenagers are addicted it so that parents are concerned about its effects on teens' safety and health.
(lucky), Douyin, the Chinese version of Tik Tok, is introducing a "teenager mode" to limit the time that children under age of 14 spend online to 40 minutes a day. It's suggested that all Douyin users under 14 register for the app by using (they) real names. Besides, Douyin will not be (access) to teenagers between 10 p.m. and 6 a.m. to technically prevent them from staying on it for too long.
Actually, (promote) teenagers' right usage of Douyin will also push other video-sharing apps (take) similar measures.
