KAMPALA — Allen Asimwe has dedicated more than two decades to teaching geography at a large public high school in southwestern Uganda. Her retirement age, as a public servant entitled to benefits, is just six years away. She doubts she will wait that long. “I am determined, I want to quit,” she says, calculating that she could earn more by shifting full time to the salon she opened six years ago to supplement her income. “Given the frustration, I cannot continue in class anymore.” For years, she hoped the Uganda National Teachers’ Union would succeed in lobbying for better wages. […]