In Australia, "Rent a grandma" services are pretty popular.

"Always Trust Your Grandma"

Rent A Grandma is a one stop agency for all quality domestic staffing needs. Grandmas are carefully screened mature women who are only the most professional, experienced staff and meet the standards will be demanded for own "Grandma" by the customers.

Rent A Grandma sets a standard unequaled in the industry. This agency carefully screens and background checks each applicant.

Agency says that Grandmas don't text or tweet while they are watching the kids!