Tara Winkler, a former NSW Young Australian of the Year, warns against the dangers of allowing foreign volunteers into orphanages. Ms Winkler says potential abusers are not being vetted among a high volume of visitors to Cambodia's 600 orphanages and children's residential care centres. Around 47,900 children are living in orphanages and residential care centres in Cambodia, despite research showing that the institutions scar their emotional and personal development. Seventy-two per cent of children in Cambodia's orphanages and children's centres have at least one parent.