Sentimentality is the emotional promiscuity of those who have no sentiment. - Norman Mailer
But why do people who are good at families have to be smug and assume it is the only way to live, as if everybody else is inadequate? Why can't they be blamed for being bad at promiscuity?
A large proportion of mankind, like pigeons and partridges, on reaching maturity, having passed through a period of playfulness or promiscuity, establish what they hope and expect will be a permanent and fertile mating relationship. This we call marriage. - C.D. Darlington
It's very healthy for a young girl to be deterred from promiscuity by fear of contracting a painful, incurable disease, or cervical cancer, or sterility, or the likelihood of giving birth to a dead, blind, or brain damaged baby (even ten years later when she may be happily married).