actually i agree with the last part. socially awkward people can often blame their parents for how they brought them up wrt acting in social situations, reacting to things, dealing with criticism, etc. if not parents, then teachers/other caregivers.

a lot of it is a self-fulfilling prophecy, too, i think. i used to be horribly awkward and socially anxious. now, i can put on a face like i'm not, even when i feel nervous or weird in any given social situation. i partly taught myself this and i'm honestly proud of it. it involved a lot of self-reflection and getting the fuck over myself, as well as building up self-esteem.