I do check people out - but I don’t need to “connect” with them to do so?
Eg LinkedIn and any work details and profiles can normally be viewed without registering.
They can't check me out because I wouldn't give them my name. My name on the apps isn't my real name either. I work for the govt, we have very strict sm policies, no way would I want some internet random seeing my LinkedIn profile! And I'd never tell them my actual employer (it's not directly the govt).
I don't have Instagram.
Noone has ever asked me for sm links anyway, and I don't "follow" people so it wouldn't do them any good to ask me anyway.
I'm just old and boring. I give a false first name (as has decorator guy, I note his name on his co website is different) and meet in a public place. If they're lucky I might tell them my real first name after we meet. :)