Although it is true that a person can be crossed in the feet, i.e., right side dominant but left foot dominant, there aren't a lot of them in the USA...an educated guess would be about 6 million or 2 per cent of the population...this would be consistent with what was found in the Army some 40 years ago.
Here is another study from 40 years ago:
"A study of 5,546 subjects from 40 years ago determined almost a third were "cross-dom." 28.6 percent had left eye and right hand preference, while 3.9 percent had right eye and left hand preference. The citation was "Rengstorff, 1967." The same study found 91.5 percent of those surveyed were right-handed, 7.7 percent southpaws, and 1.1 percent ambidextrous."
29% of the right handed people were left eye dominant.
Only 4% of the left handed people were right eye dominant.
92 per cent were right handed.
8 per cent left handed
1 per cent ambidexterous
The 29 per cent figure (right handed people who are left eye dominant) is a bit high, but it is, probably, because women were included in the study. Women have a higher incidence of cross dominance, and a higher incidence of anxiety, which matches, by the way, that incidence...
Always found that interesting. Today, you would get a slightly higher incidence of lefties.
In Canada they sell an incredible number of left handed golf clubs, probably, due to so many kids learning hockey in youth, and then they play softball and baseball from the non-dominant side....finally, golf.
It is a facinating subject, and you can find more on the internet under lateralisation. If you are an anxious person, or you get anxious on the golf course under pressure, this could be the reason...
You can be crossed in the eyes, ears, hands or feet. If you have kids diagnosed with attention problems, have all four areas checked. From my experience, about 1/2 of the kids on meds for attention disorders could be removed...they are just crossed, and the cure is SIMPLe.