Reading through the list of "what children must learn" in respect to sex and marriage in today's Telegraph, I was not sure whether to laugh or cry at the naivety of those who composed it ("Pupils will be told to delay sex").

Those with such little understanding of sex and society themselves, should think twice before telling teachers how to teach these subjects to their pupils.

But does anybody really understand sex and society, given the sorry sexual state that society is in?

SEX SELLS: books, films, TV programmes, and just about anything you care to associate with it - as advertising agencies make it their business to do. So that we are saturated with it, from cradle to grave, or rather with a very narrow, shallow, perverted kind of sexuality. But to a much larger extent than we are prepared to admit, this is where we get our sexual morals and attitudes from.

Teaching children something else at school is a complete and utter waste of time; like teaching them not to smoke when at the same time the tobacco industry is spending 100s of millions of pounds promoting the image of cigarettes.

When I was a young man I though that sex was just for fun, and I remember thinking to myself that the expression "to make love" was just a euphemism for sex. I was over 40 before I realised how mistaken I was.

If we grownups understood human sexuality we would find ways of preventing its commercial exploitation.

But it is obvious that we do not. So how can we presume to teach our children about it?