It is wonderful that American students--to my knowledge more than in other countries--earn their living while going through college. The advantage of this is evident: depending upon himself he becomes mature; he gains respect for the value of money and knows what it means to have none; he becomes acquainted with people, acquires an understanding of their psychology and social relations; he learns what to expect of them if he treats them right and how one can fail if one does not.
Schoenberg, Arnold (2001) How Can a Music Student Earn a Living?. In: American Music Teacher, Vol. 50, No. 4, pp. 34-36. Available at http://openmusiclibrary.org/article/15844/.