PreSchool children and barefoot policies

Preschool children and the possible effects of a barefoot policy while in kindergarden. 
You will see it if you pay enough attention to enough barefoot young children, some kids have not yet dropped the toes to the ground.
-study compared the effects of barefoot policy on children where their toes do not rest on the ground while standing normally
-In conclusion, the ground contact of the toes becomes better for boys in kindergarten with a barefoot policy. The results were inconclusive with regard to girls

The effect of the kindergarten barefoot policy on preschool children’s toes

Shigeki MatsudaKosho KasugaTadayuki HanaiTomohiro Demura, and Keisuke Komura

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4937549/