Mostly, no. Check local laws, but I think you have to be 14 or 16 maybe to supervise children of certain ages for 2 hours or more. It all depends on the ages, time, and location.You may possibly be allowed to baby-sit at 11 for family and friends but not as a running business.
Sure you can.
usually 11-18
Chamacas - 2013 Babysitter 1-11 was released on: USA: 9 October 2013
Frasier - 1993 The Babysitter 11-4 is rated/received certificates of: Canada:PG (video rating)
My Babysitter's a Vampire - 2011 Halloweird 2-11 was released on: USA: 23 September 2012
My Babysitter's a Vampire - 2011 The Brewed 1-11 is rated/received certificates of: USA:TV-PG
The Ex List - 2008 The Babysitter 1-11 is rated/received certificates of: Netherlands:6
My Babysitter's a Vampire - 2011 Halloweird 2-11 is rated/received certificates of: USA:TV-PG
The Louise Log - 2007 The New Babysitter 1-11 was released on: USA: 10 December 2008
Hey Dude - 1989 Bar None Babysitter 2-11 was released on: USA: 16 September 1989
My Babysitter's a Vampire - 2011 The Brewed 1-11 was released on: USA: 14 July 2011 Canada: 1 March 2012
11 or 12 the younger the child the older the sitter!!