I think the appropriate action is to force them to fix their privacy policies if there's something incorrect there, and to be clear about what data is collected.
After that anyone should be free to know what data is collected and decide to use or delete the app. I mean, if someone wants to use the service, just let them use, it's their personal choice.
It is a mistake for people in the EU and US to think of Chinese-based data collection companies as the same as EU- and US-based companies.
TikTok in the US is not the same as Google in France, and even they were recently fined for signifcant privacy concerns.
It is important to protect citizens. People often don't have enough information about sharing their data to make the best privacy decisions without legislation to protect them.
Well, education is the key then. Instead of banning people from using it, they should educate the public about potential followups of sharing on/using TikTok.
Banning use is never an answer. If I want to share my data, it should be my choice, not the government's.
After that anyone should be free to know what data is collected and decide to use or delete the app. I mean, if someone wants to use the service, just let them use, it's their personal choice.