What are the pros and cons of not being on social media?

I doesn't really admire social media , I was on insta 2 years back used it for an year and then deleted it as it was really addictive. But then it's been more than a year now I have never felt like going back on insta and I don't like people getting to know much about me so I prefer anonymity and even I am least interested in others life. I sometimes feel very lonely and that maybe I am missing out on a lot of things.. but I just hate creating social media profiles not sure why.. what would be your opinion on this? do u see any problem with my behavior, would that affect how others see me?
What are the pros and cons of not being on social media?
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