Streaming music service Rdio was innovative in launching its family subscription plans back in August 2011, providing cheaper subscriptions for the second and third person in a household to sign up for Rdio. But what about bigger families? Now Rdio is catering for them too, expanding its plans to cover up to five accounts per household on its Unlimited web+mobile tier. Two cost $17.99 a month, three cost $22.99, four cost $27.99 and five cost $39.99 – a saving of just over $10 on the price of five individual subscriptions in the latter case. “Bigger broods no longer have to squabble over shared accounts,” as Rdio puts it. We remain surprised that more of Rdio’s rivals haven’t adopted similar tariffs though. In 2013, particularly in the US with its six-strikes anti-piracy scheme, you’d think marketing streaming music to parents as a way to ensure their kids stay on the right side of the law would be a worthwhile tactic. In March 2012, Spotify’s chief content officer Ken Parks told The Verge family plans were “definitely coming” on his service, but they have yet to materialise, for example.