I think OCD and anxiety are from living with family members or others that project those things into them. No one is born OCD or anxious. They are traits acquired from others.
Kind of like racism. No one is born a racist. They only become one because of others.
While I'm sure environment does play a role, so does one's predispositions. Anyone can develop anxiety, but some are more inherently prone to it than others.
Being Autistic makes one more predisposed to separate conditions like OCD for example.
Bet with Liquidlaser: I say PS5 and Xbox Series will sell more than 56 million combined by the end of 2023.