23% of parents of kids in the UK aged 10 or under said that they allow the child unsupervised internet access

"A [...] survey of more than 1,000 parents found that almost a quarter (23%) said they had, or would, allow their child of 10 or under to have unsupervised access to the internet on a home computer.
Almost four in 10 (38%) said they had, or would, allow a child aged 10 or under to have their own mobile phone, while one in 10 said they would allow a child under eight to have their own mobile."
Source: BMRB (British Market Research Bureau) poll of 1,163 parents of children aged eight to 14 in England during October, reported by The Daily Telegraph, 16th November 2009