Bingo. It’s all about procreation.
It is all about love. God designed a man, a woman and children as the ultimate facilitator of human bonding and the expression of love. Children are to be the wonderful outcome of the absolute miracle of love and the continuation of the property of true love into the next generations. This is why having a man, woman and children as family goes way beyond the mere purpose of the utilitarian function of reproduction. It is about God who is love, who built the family structure as the plant that love best blooms out from. Any other try at a structure that is not His fails miserably. The commodity of life is love. The sooner that people understand this, including and especially our young people the sooner they will understand that God knows what the blueprint of love is and if they want to experience the full meaning and purpose of life and love they must do it His way. If they don’t they miss out on the wonderfully amazing purpose of their whole existence which is to be an expression of God as love.