Do you need to go to school to become a plumber?

Only if you like getting into tight places like under sinks, and dropping down into watery, smelly holes to fix and clean up a mess. The plumber I talked said he would not do it again if he could live life over - to many aches and pains in his joints from crawling and squeezing into tight areas in houses, restaurants, hotels, etc. You can earn a good living being a plumber, however.