The 72-year-old singer doesn't mind that he never became a father as he feels it would have interfered with his career.
He told The Lady magazine: "Being completely honest, it's never bothered me. My three sisters have children, and it's been wonderful to watch them grow up, get married and start families of their own.
"I've made sure I've always played a part in their lives. So while I think I would have been a good father, I've given myself to my family and I wouldn't have it any other way. My 'freedom' allows me to continue my career.
"Had I been married and with children I wouldn't be able to do what I do now - I wouldn't want to do what I do now."
The 'Summer Holiday' hitmaker - who has sold over 20 million records in the UK and is the only artist to have had a number one single in the five decades from the 50s to the 90s - also said he was always too afraid to try drugs, as he was afraid they would ruin his career.
He said: "Growing up in the fifties, the world was a very different place. Drugs weren't as commonplace as they are now but they were still around.
"I just didn't know what they were and now when I think back I realise that the smell backstage wasn't herbal cigarettes.
"After 10 years in that environment, I started to think, 'Is this how I'm going to end up?' and I certainly didn't want anything to cut my life short. I'd have been devastated if anything had stopped me living my dream."
He also praised boy band One Direction, and said he'd be up for it, if they wanted to hire him for a duet.
He added: "I've heard One Direction now and think that each one of them has a terrific voice, so if they ever decide to do a duet I'm available but not 'cheap'."
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A man who appeared to provide sign language interpretation on stage for Nelson Mandela's memorial service, attended by scores of heads of state, was a "fake", the national director of the Deaf Federation of South Africa said.
There has been a slight decrease in the number of residential mortgages in arrears over 90 days and an increase in the number of permanently restructured mortgages in October, according to the Department of Finance.
The Limerick intermediate team is still without a manager, but, in a compromise that was backed unanimously at a meeting of the county board in Claughaun GAA club last night, the dispute that had threatened to throw the county back into the chaos it had witnessed only three years ago was finally resolved.
MYTHS are the stories that groups tell themselves: the beautiful lies that allow life go on. This is a week of great myth making. In the death and interment of Nelson Mandela we are witnessing modern myth being made in front of our eyes. But myths can be pernicious and evil — corroding life as well as enhancing it.
Tipperary native Brian Lonergan fulfilled a long-standing ambition when his tricolour appeared on live TV during Sunday's NFL clash between the San Francisco 49ers and the Seattle Seahawks at Candlestick Park.
THE scandal at the Central Remedial Clinic is a gift to the Government. Here we have an organisation seemingly plundering charitable funds, to feather the nests of a group of Fianna Fáil insiders, all of whom can be linked easily to former Taoiseach Bertie Ahern.