When kids start playing soccer, their coaches and parents are desperate of finding the ideal position for them. Picking a soccer position for kids is not a process that should be hurried. In fact, many soccer players don’t even have an established-unchangeable position.
So, when should kids pick a position? It is not a good idea to force kids to stay in one position for the rest of their soccer lives. However, around age 14-15, kids should have an IDEA of what area of the field they are most comfortable playing at: Goalkeeping, defense, midfield, offensive field.
Now, the idea you have at this age may stay or even change overtime . . .