It really just depends on the two-year old girl overall size and which country you live in. The shoe size in Mexico is different from the size in the USA, and so on.
There is no average shoe size for a 15 year old girl. Shoe size can vary and it depends on height.
The average shoe size for a 2 year old girl is a US size 8. This size is in Adult size.
About a size 231
three
size 1-5
The average shoe size for a 7 year old girl is around a size 2 to 3 in children's shoes. However, this can vary depending on individual growth and development.
Between size 8 and 9
usually about size 3 or 4.
Everyone is different!
Most likely a typical 4 yo girl will wear 9 1/2 to 10 size shoe.
7 or 8 womens
Usually from 4-6.