Argentines love and pamper their children in every way possible. Argentine kids are also trained from an early age to stay up late like their parents. Don't be surprised to find yourself passing a playground full of kids and their parents on the swing sets at 2am, when you're trying to find your way back to your hotel.
Many hotels have programs for children, especially around the holidays. Most will also provide babysitting, as long as it is requested in advance.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.