The explanation of left-handedness is simple.
It even claims that left-handedness was the dominant condition south of the equator, and that it was related to sun worship and domination by various civilisations.
I think that left-handedness is an issue of equal opportunity.
There is a staggering lack of official information on left-handedness, which has led to much ignorance in the educational establishment.
I accept that there has been prejudice and discrimination against left-handed people, and a feeling that left-handedness was wrong and unacceptable.
Only if teachers are encouraged to recognise left-handedness early will that be prevented.
Thirdly and most important, the teacher training syllabus should include left-handedness.
There is subsequently a difficulty—which will not apply to left-handedness—in defining various special educational needs.