As an American, I would never download a Chinese app like WeChat or use a digital service based in China.
For a long time I refused to keep a lot of information on Facebook as Facebook seemed to only consider privacy as an afterthought after users expressed outrage (I appreciate transparency about the use of data so I can make my own decision). I refused to use the sign-in with Facebook functionality as I had no interest in giving third parties access to my FB data. Eventually I just gave up and now use Facebook sign-in everywhere because it simply is much more convenient.
When I traveled to China a year ago the utility of using WeChat or Baidu Maps was simply too great. I was well aware that using these applications almost certainly would surrender information to the Chinese government. Interestingly enough, because I assumed that this would happen one way or another during my 3 months stay I felt more inclined to use these applications.
WeChat is the only viable way to keep in touch with all of my Chinese friends in China and in the US.