cultural values and social practices

Cultural values often are disconnected from social practices. The values reflect ideals that are often disconnected with the realities of daily life.

I am suddenly reminded of a joke from my childhood, when the primary method of birth control used by Catholics was the rhythm method.

Old Joke:
"What do you call a couple who uses the rythm method?"
"Parents."

New joke:
"What do you call parents who teach abstinence-only to their teens?"
"Grandparents."