Answer: TikTok is a company that is owned, at least in part, by the Chinese government. They are known to collect TONS of data from users, including location data, and that data is sent back to servers IN CHINA. While the company has tried to deflect and say they are perfectly innocent, there is no real reason to believe that user data harvested by the company isn't being diverted to other, more nefarious purposes, by the Chinese Communist Party and it's spy agencies. Remedies such as relocating the servers to the US where access can be monitored and controlled has been met with resistance, and there are indications that the NSA or CIA or other agencies have found them to be a security risk.