What do you mean exactly by accepting more than one girlfriend? It's usually considered normal to date multiple people before marriage and this applies is true for both women and men. However, it's often frowned upon to have multiple intimate relationships at one time whether it's a boyfriend-girlfriend relationship or marriage.
Many people will have more than one girlfriend, but usually not at the same time. Men and women are jealous and will usually not accept this. Most Americans respect marriage and promise to be loyal to their spouse. Sometimes the cheating is secret - as in the case of Tiger Woods - and when the wife finds out she is not happy!Sansa Morse, Tucson, Arizona
Having more than one girlfriend (or boyfriend) at the same time in generally frowned upon in the West and considered cheating. However, it is also generally considered normal and desirable to have several girlfriends/boyfriends at different periods of a person's life. Westerners often believe they cannot understand what kind of person they want to marry, what qualities they want in a husband or wife, and who they will be most compatible with until they have met many people. Dating is considered a desirable social activity that will help people to become better husbands and wives in the future.Leanna, Utah, USA
I agree with the above comments. It is not accepted to have more than one girlfriend, or more than one wife. There is a lot of jealousy that comes out of that situation.
It is almost always morally objectionable to have more than one girlfriend at the same time in the West. This is a taboo.
When a man is dating it has become more common for them to date multiple women, but when the man makes the step to make a commitment as boyfriend and girlfriend that is when it is expected for him to be a monogamist. In America, men are only suppose to have one girlfriend or wife. That is the law for marriage. A married man cannot marry another until a divorce has been processed or the wife has passed away.