I nursed my AS son, my first, for 24 months. The plan had been to wean at 12 months, but that pretty clearly was not going to work with him, so we held off. At 24 months it was difficult, but he accepted it.
My NT daughter weaned a little later. I didn't try to wean her at 12 months, basically to be fair, so I don't know if that would have gone better with her. At 24 months, however, she was much, much more difficult than my AS son was.
So ...
I have no idea what it all means.
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Mom to an amazing young adult AS son, plus an also amazing non-AS daughter. Most likely part of the "Broader Autism Phenotype" (some traits).