When I was young, it was still the custom for couples to get their parents' approval before they got married or engaged. Nowadays that would be considered laughable.In the fifties and sixties, some parents would resort to anything to keep their beloved offspring out of the clutches of someone they deemed unsuitable - even locking them in the house. And in those days even smoking the odd joint or liking Mick Jagger could qualify as unsuitable.
There would be furious arguments between teenagers and parents about the freedom to choose your own girlfriend or boyfriend, and parents would claim the final say in the matter.
Thankfully that's all changed and most parents no longer assume the right to interfere in their children's relationships. They believe it's their children's decision, and if they make mistakes, then it's just a question of trying again with someone else. No big deal, and it's unlikely to ruin anyone's life.
Even cohabitation, which was still quite rare when I was growing up, is now considered not only totally normal but like marriage a matter for the couple and nobody else.
But some parents still try to influence their children's choices. They're convinced a relationship can only end in disaster and they have a duty to cut it short, even at the risk of their child snubbing them instead.
They object that the girlfriend or boyfriend is the wrong class, the wrong colour, a spendthrift or just a permanent loser. They think their child is too naive, too besotted, too young, too mixed-up. Their judgment is not to be trusted.
They still can't accept that their children have to make up their own minds and determine their own lives. They can't accept that the most unlikely relationships can prosper and survive despite everyone else's doubts. They can't quite cut the apron strings.
