A lot of people assume everyone else has it worked out.
But people mostly don't have it all worked out.
There are specific demographics who do.
Some are naturally gifted at social interactions and/or grew up in environments which taught them how to socialise effectively.
Others are charming narcissists - likeable, high status, attractive on the outside, monsters on the inside. They can appear effortless because they don't care about anything except presenting an image, so they get get very skilled at it.
Most everyone else has some social anxiety or frustration and makes more or less obvious social mistakes at least occasionally.
But people mostly don't have it all worked out.
There are specific demographics who do.
Some are naturally gifted at social interactions and/or grew up in environments which taught them how to socialise effectively.
Others are charming narcissists - likeable, high status, attractive on the outside, monsters on the inside. They can appear effortless because they don't care about anything except presenting an image, so they get get very skilled at it.
Most everyone else has some social anxiety or frustration and makes more or less obvious social mistakes at least occasionally.