Why was the boy In the lawn boy so surprised that he had 15 people working for him?

In "Lawn Boy" by Gary Paulsen, the boy is surprised to find that he has 15 people working for him because he initially started his lawn care business as a simple summer job, expecting to manage it on his own. As Word of his hard work and quality service spread, his business unexpectedly grew, leading to a rapid increase in demand and the hiring of more workers. This sudden expansion highlights both his entrepreneurial spirit and the unforeseen success of his venture.