<p>Service academies pay the cadets and middies a small salary as well as providing their tuition, books, food, uniforms, and housing.</p>
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<blockquote> <p>My sister working on her Ph.D at U of Mich. gets paid to go there.<<</p> </blockquote>
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<p>It's very common at many schools for Ph.D. students to get a modest stipend, usually a teaching assistantship or a research assistantship.</p>