TV's Bear Grylls thinks children should take more risks in life. Is that irresponsible?

TV action man Bear Grylls has hit back at critics who slammed him for leaving his son alone on rocks in the sea. This week the survival expert found himself the centre of controversy after putting his eldest child Jesse up for a training rescue mission - and even tweeted a photo of the 11-year-old surrounded by the waters in north Wales. 41-year-old Grylls said the stunt had been carefully planned and argued that children needed to take more risks in life. He said All children have a right to adventure... these moments allow children to get excited about the possibilities the world has to offer. "I believe it is fundamentally unfair to put children in a holding pen until they are 18. Is he right should we allow children to take more risks? Stephen talks to ommentators Heidi McAlpin and Lembit Opik