My partner has also avoided facebook - until recently. Circumstances rather twisted her arm.
Her reports of using it confirm my avoidance. She wishes she didn't have to use it.
One of the things I detest about it is that it is the way so many people and organisations regard having a facebook presence as "being on the internet". I'd much rather they set up even a pretty simply website and used facebook only as a way of promoting themselves and making it easy to find. That way, it is still accessible to those who avoid facebook. (All too often, whether or not it is intended, I have been in a position of trying to access some facebook page whilst remaining not-signed-up and it is impossible to access adequately. Obviously intentional by facebook - but sometimes not by the page owner.)
I think there can be a reluctance to use social media because of a fear of something new / the unknown. I remember setting up and introducing a Twitter feed to my job shortly before I retired. All the old gits about my age refused to go anywhere near it, but they had no idea what it was about or how to use it. How can you decide something is not a good thing if you don’t understand it? Crazy. The younger people, who were at least half my age, were all over it and soon took over and developed things further. Left me behind
I mainly use Facebook for the local running and cycling clubs. Both are closed groups and the platform works very well for organising / promoting runs and rides.
Unlike many users, I don’t subscribe to spilling my daily routine and emotions onto Facebook. It makes you wonder what’s going off inside some people’s heads. I remember that following the London Bridge terror arrack, a bizarre competition to see who could be the saddest person using Facebook was born. All of the comments were totally self centred, “I’m so sad”, “I can’t stop crying “, “I feel such loss”. These idiots didn’t even know anyone involve, it’s crazy.
Twitter can be useful for accessing customer service. Many organisations have a Customer Service Twitter presence and I find that they tend to put the better employees in this area. The ones who are capable of thought and problem solving. Also, you usually make contact quicker via Twitter. It’s worth considering.