Two of my three children have dreadful handwriting. The oldest has lovely handwriting. My younger DC's handwriting seems to be typical of their peers.
The only difference between their educations is that DD1 did most of her primary education in a state school in the Netherlands.
In the Netherlands children arent taught to read/write until around the age of 7. At the same time they are taught a formal handwriting style. Is there a correlation between leaving formal reading/writing until later and 'quality' of handwriting? I wonder if our obsession with early reading/writing (when fine motor skills are not there) is consigning children to dreadful handwriting.
Just a thought.