At a panel I moderated at Digital Media Wire's Future of Television conference in October, Parks Associates Director of Research, made the point that, among Millennials, it is considered bad behavior to NOT share your pay-TV credentials. Those who do not share are ostracized.

In the Parks Associates whitepaper, "The Cost of Piracy," analyst Glenn Hower writes: "Respondents showed no guilt or embarrassment when admitting to accessing others' paid services." And he goes on to quote one college student: 

"I probably wouldn't pay for my own. If my parents dropped, I'd use a friend's password. If they dropped, I'd use a different friend's password. There's like an infinite number of passwords that I could use and not pay for it."

From the article "THE ITV DOCTOR IS IN!: PAY-TV AND THE SHARING ECONOMY" by Rick Howe.