General Discussion

If all you need to do to survive is simple, repetitive tasks that you have a lot of time to do your tasks, then it doesn't matter if you have autism, or ADHD, or even a neighbor with somewhat functional Downs Syndrome child that could still help with household chores.
A more technological society where time is a significant commodity is extremely difficult for someone with autism; you can't just stop and have a bit of a breakdown, or deal with a stimming spell because there's only 5 minutes to get everyone ready to head out of the house in the morning to go to school, daycare, work...and 9 year old Bobby starts to fall apart because he can't find his special action figure keychain ...
That's why Autism started to become such a big deal "post WWII", when people started moving off the farm and into the cities, and time to stop and have a cup of tea or take a nap started disappearing.