Julie Andrews with the cast of West End show Mary Poppins. Photo: Jane Mingay/PA.

A survey by recruitment website Gumtree indicates that ambitious parents tied up with their own careers are looking for university-educated "supernannies" who can help their offspring with everything from learning a second language to playing musical instruments, while still fulfilling the traditional role of carer.

Hiring a nanny is not a new phenomenon, but they are expected to do more and more for their money. Parents are looking for a mythical Mary Poppins figure to cook, clean and care as well as educate. Well-off families are offering as much as £500 a week, as well as perks like cars and spa memberships, to anyone willing to work the long hours.

The media, too, have put the idea of a nanny on a pedestal, with Channel 4's Jo Frost assuming the role of Supernanny, and the childcare needs of celebrities like the Beckhams and Jude Law splashed all over the tabloids.

But with the role of nanny and parent becoming increasingly blurred, some might say that parents are shirking their responsibilities to their children.

What do you think? Are nannies a handy convenience for modern living or are they a substitute for adequate parenting?