Apparently most of society has some autistic tendencies in them, more so when they are children, they usually decrease as people age.
I think that is very true and after watching the actual program, what became obvious was that as we become older and more experienced, we learn how to cope with and hide it. Thinking back to when I was at school all those decades ago, there were many kids with various behaviour issues. Most of us just got on with life, learned what was acceptable in society and muddled along just fine. I remember I was a bit retarded with reading and writing, simply a result of being left handed and the fact the would ties my left hand behind my back, to force me to use my right. That treatment put my back up and made me even less interested in learning, yet in many things - I was well ahead of the rest of the class. I can now work just fine with either hand, but I still write with my right and my hand writing is terrible.
I think it's only really an issue if it has a dramatic effect on ones ability to enjoy a "normal" lifestyle.
Yes, if you low on the spectrum, you do just learn to cope. One of my 'girl friends' had a 10 year old granddaughter, who genuinely was well up the spectrum. The first autism sufferer I had ever come across and I was quite curious as know a bit about it, plus her behaviour problems, so a couple of times I took her out to see the local sights. Very strange, almost like an automaton. Never got exited about anything, everything matter of fact, never smiled or laughed, never acted like a normal 10 year old, I took her for a McD which she wanted and chose, yet she picked out only certain bits of it to eat. I had to keep hold of her all the time, or she would be wandering off. She had to be told to do absolutely everything, but she was brilliant on video games, on tablets. The only time she acted like a 10 year old, was when I took her to Royal Armouries and there they have a section for kids, where they could dress up in Middle Age costumes. Other kids played there together, she on her own just trying one thing on after another.