I had not used TikTok until yesterday. My niece in her mid-20s said she had stopped using the TikTok app — a Chinese-owned video-sharing social networking service — because it’s best suited for teenagers. After downloading and trying the app for a while, I deleted it because she was right.
As for WeChat, I had to reluctantly download the app several years ago. It was the best way to communicate with friends in Beijing, who strongly recommended that I do so. WeChat is still on my cellphone although every WeChat user knows that whatever is communicated on the app is being monitored by relevant authorities.