The road to hell is paved with nutty electives or recently established majors. Your elective courses allow you to gain some potentially valuable insights into skills and subjects outside your major. Sometimes a career direction can emerge out of your elective courses. A job is a job, and a hobby is for weekends. Hobbies let you express a deeper level of interests and skills that, with careful preparation, could lead to a satisfying job.
Colleges grant guarantees as well as degrees.
A career chosen is a career for life. The insights your parents can give you about yourself may indeed be valuable, but possibly biased. Eighteen year-olds should know what they want to do for the rest of their lives. It is possible for 18 year olds to have a very definite idea of a career or at least a direction to explore. However, most students gradually explore, investigate, experiment, refine, and redefine their sense of self and their long and short range goals.