What reason does the man give for his job choice?

The man indicates that he chose his job primarily because it provides a good income. This reason reflects a practical consideration, as many individuals prioritize financial stability and the ability to support their lifestyle when selecting a career path. In creating a stable and prosperous future, the promise of a solid income can often weigh heavily in the decision-making process. While various aspects of a job can influence a choice—like simplicity, challenge, or opportunities for travel—economic factors typically play a crucial role in ensuring long-term satisfaction and security in a career.