Confessions of an aupair

I was an aupair to two lovely children (lets call them George and Lucy) for a year while I was a student living in Durban. Aupairing in South Africa is convenient for young women such as myself who need part time jobs that fit in with going to lectures and writing exams. I am in no way complaining about the fact that aupairing exists as a job, but I am confused as to why they are necessary. This is my story.