Very well put.
Also for me I had thought I was autistic all my life but didn't see the point as I wasn't struggling.
Then once all my support systems were taken away from me, I stopped coping, I was unable to power through any more and I went and got my diagnosis. I'm probably now too burnt out, had too much skills regression and have too low of a tolerance to ever go back to the life I had, I'll always need a higher level of support, and I'm mad that this could have been recognised at a much younger age and I could have had access to support and provisions put in place for me all my life.
Told myself all my life I'm a failure because I just can't get it right, I can't socialise properly, people all seem to think I'm a little bit weird no matter how hard I try to change it. But I'm not a failure, I'm autistic and I don't need to try harder and I shouldn't have been trying harder for decades. And I wish someone had told me before I was a teenager, because being a teenager is hard enough without adding social and communication deficits, fawning, and sensory issues. That was a recipe for poor mental health and suicidal ideation.
If you think you or your kids could be autistic, why go through years of thinking your deficits are character flaws that you can improve if you just try harder?
When I went for my assessment and got my feedback they also touched on cPTSD and said it goes hand in hand with many adult diagnoses because of years and years of unmet and unrecognised needs and the rollercoaster you go on post diagnosis realising all the times you had a need dismissed, or all the times you had a meltdown and were called crazy or dramatic or told to shut up and pull yourself together.
I have a very biased position, but like the PP I've quoted I just can't understand why you wouldn't go through the assessment process to learn more about yourself or your kids and be better equipped for advocating for your needs if you've got a suspicion.