Demand for the system is based on the fact that there are many situations in which asking a person out might have negative consequences if the feelings are not mutual. For instance, many people may be reluctant to ask out a good friend, for fear that if the answer is No, it will ruin the friendship once the other person knows how they feel. Co-workers may face a similar situation; if the co-worker rejects the romantic overtures, the work situation may become awkward.