Before becoming a household name, Mark Cuban’s life was rooted in the hard-working ethos of a middle-class upbringing. Born and raised in a Pittsburgh suburb, Cuban learned the value of independence and the power of a strong work ethic from an early age. “It was your typical middle class. My dad would leave in the morning, you know, 7 a.m., get back at six. You know, mom doing whatever,” Cuban recalled on the “Life in Seven Songs” podcast. As the oldest child, Cuban said he had a lot of freedom and responsibility to figure things out for himself. “And that, as the oldest, that left me a lot of…