silly people will think that taking a second wife will stop the man from cheating.
Cheating is a bad habbit which should be stopped.
In some cases some women can not give birth and the man would like to have children shall he divorce her directly? No he can speak with her and if she is not selfish she will allow him to marry second, but what if he can not let her pragnent for some reason, then it is up to them and if she wants divorce then this man should divorce her and not be selfish.
At the end it is up to them if they want to stay together, the man and the woman are the ones who decide.
Marrying more than is set for reasons as well as the divorce.