Owen Lars had toiled to make a life for himself on Tatooine. As a young man, he had a strong vision of what he wanted to make of himself, and that vision was firmly rooted on Tatooine. His goals were clear and attainable through discipline. He would turn the Lars homestead into a productive farm, and live there with his love, Beru.
Helping with the dreary chores required to keep the farm profitable, Owen relied on his nephew Luke Skywalker. He could not rein in Luke's drive for adventure, though. Young Skywalker longed to leave Tatooine and join the Imperial Academy, to live life among the stars. Owen forbade it, reminding Luke that he was needed on the moisture farm.
Skywalker would eventually leave the farm, but under tragic circumstances. Imperials searching for missing droids razed the Lars homestead and killed Owen and Beru. With nothing left to keep him on Tatooine, Luke left the desert planet and began down the path of Jedi Knighthood.