I think it won't hurt to not use Facebook. I have a few Facebook accounts for some reason, but I don't actually use them.
In my region, I have seen a fan page be taken down entirely and some people said that was because it did not conform to a certain Facebook moderators' political position. So it can be risky to host your contents on Facebook.
For using Facebook, I think it's okay, I know some people who don't have it. I personally don't use it too much just because of the toxicity of some people that I know in real life. They are not entertaining enough, and ultimately, I use it for communicating purposes.