crystallization of vocational choices (between the ages of 14 and 18);
. specification of a vocational choice (between the ages of 19 and 21);
. implementation of a vocational choice (between the ages of 22 and 24);
. deciding on a profession (between the ages of 21 and 30); and
. settlement of the situation and progress in the subject profession (between the
ages of 31 and 44).