Why does miguel decide to work in the fields instead of working on the railroad?

Miguel decides to work in the fields instead of on the railroad because he believes the agricultural work offers a more stable environment for him and his family. He feels a strong connection to the land and values the opportunity to contribute to the community through farming. Additionally, the harsh conditions and dangers associated with railroad work deter him from pursuing that option. Ultimately, his choice reflects a desire for a safer and more fulfilling livelihood.