No socials and no past partners—red flag?

Hello! I've been seeing conflicting answers online, so I wanted to see what you guys thought.

I am a 21 year old female. I have absolutely zero dating experience (I'm not interested in dating apps, and can't see myself ever being interested in them) and no social media (well, besides Reddit, I suppose).

My question is, is this a red flag for you or others? I see really opposing viewpoints and would like some insight. If it is a "red flag," how come?