The most common cause of a loss of interest in sex, however, are problems with erectile response or lubrication that are not addressed early. This lack of satisfaction is not limited to those over 50 years of age. Sex is intended primarily for having children. Sex is intended only to satisfy the man's ego and needs. Women do not have the same sexual drive and needs as men.
Pleasurable sex is contrary to religious teachings.
Age is an acceptable reason to abstain for those who have never really enjoyed sexual intercourse. Comparison of Sexual Performance Psychologically the most common error is trying to rate one's sexual performance against so-called norms. People have different needs and what may be satisfying for one couple may not be for another. In truth, there are no norms or standards. The only barometer to measure a healthy sex life is the satisfaction of both partners.