age, IMO.

Believe it or not, I have "unfollowed" many people I am "friends" with
because I got sick and tired of all the politics, both from those on the
left and those on the right. You probably know that you can "unfollow"
without "unfriending". Unfollowing just deletes their posts from your
timeline. You can still go to their personal pages if there's something
of interest to you.
......

Richard, I have "unsubscribed" a few for that same reasons and have blocked almost all news sources as well...