No I don't think everyone has autism. Every one might have something that is part of it to a degree but it doesn't mean it's a symptom nor does it mean it's a trait. Like lot of kids are picky eaters, everyone might have a hard time relating to someone due to different interests and political views and the kind of people they are, some people are just introverted so they get exhausted after social situations, and people might be annoyed when they see a road they usually take is blocked off due to an accident or road repairs or something but they get over it quickly and their day isn't ruined nor has it thrown them off for the day. It's about degree.
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Son: Diagnosed w/anxiety and ADHD. Also academic delayed and ASD lv 1.
Daughter: NT, no diagnoses. Possibly OCD. Is very private about herself.