Actor Will Smith, whose children Willow, 12, and Jaden, 14, are also part of the show business, says bringing family into filmdom is like introducing them to drugs.
"I think that the major risk of this particular business is strictly emotional," thesun.co.uk quoted Will, 44, as saying.
"The business has almost a narcotic quality. It's almost as if you're introducing a narcotic into your kid's life," he added.