Group 1 - BabyBus announced on October 29 that it will improve its advertising partner review mechanism to ensure only positive content is allowed, preventing similar incidents from happening again [1] - The company plans to establish a research and development team to create a mandatory ad interception feature to block inappropriate ads that cannot be monitored [1] - Multiple popular children's educational apps in China, such as Wisdom Tree, Beilehu, and Erge Duoduo, have been found to display inappropriate ads, including games and borderline content unsuitable for children [1][9][11] Group 2 - A professional in the children's education field indicated that the presence of unsuitable ads in children's apps is a common industry issue, often due to the need for funding to support app development and operation [19] - The reliance on advertising for revenue can lead to the inclusion of content that may negatively impact children's mental and physical health, as the primary users are minors with limited cognitive abilities [19] - The industry is encouraged to reflect and adjust its practices, potentially adopting advertising regulations similar to those in other countries, such as age-based content classification and pre-approval for ads targeting children [19]