Demi, I have a DD who is on the spectrum. Our whole family, both sides, is riddled with symptoms, and my Dad very definitely should have been diagnosed but it is too late now (in his 80s).
What makes me mad is the excuse that it's all so modern, people didn't used to know about it. Well ADHD was first noted, although not by that name, in the late 1600s. Because history is written by the winners, we don't hear the narrative of people who struggled with these things. I have quite a few sensory issues, as does DD, and I cannot wear wool, even a 5% mix of it drives me crazy. We never hear of people back in days of yore hating itchy wool, even though it was often the only material, but they must have existed. So why are all these people ignored throughout history?
Partly because it's a minor detail that gets glossed over, but also because it is a convenient narrative that this is new and we are asking for too much too soon when we expect understanding and accommodation.