I've just started reading Robert Caro's "Path to Power", and LBJ's father took exactly this route to become a teacher: "He had to quit going to high school bec

I've just started reading Robert Caro's "Path to Power", and LBJ's father took exactly this route to become a teacher: "He had to quit going to high school because of health problems, and his parents sent him to live on his uncle Lucius Bunton's ranch in Presidio County, Texas for several months.[3] When he returned home, Johnson had ambitions to become a teacher; however, the Texas hill country at that time had no state-accredited high schools and no colleges. He learned that he could get a state-issued teaching certificate without finishing high school by passing a state examination.[3] In 1896, with the thirteen textbooks he needed to study for the exam, he moved to his retired grandfather's nearby home to study in quiet.[4]" https://en.wikipedia.org/wiki/Samuel_Ealy_Johnson_Jr https://en.wikipedia.org/wiki/Samuel_Ealy_Johnson_Jr.