She must be a girl with whom he can work and plan and build. It is particularly dangerous for a girl to start petting with a man the first few times she goes out with him. She should make sure that he is clean, honest, and worth while. She makes herself cheap by offering easily won kisses. And no man wants a bargain counter wife who has been soiled and manhandled.
Marriage requires a strong spiritual balance to succeed.
If it is merely physical it is doomed to failure. That means the young man and woman should possess a deep sense of the spiritual quality of sex, obtaining from their married relations an exaltation of the soul as well as ecstasy of the flesh. The dangers of petting are very real, and very serious. A girl does well to think twice before she encourages the sort of petting that may lead to disastrous results.