separation or divorce is not prohibited in buddhism though the necessity would scarcely arise if the buddha's injunctions were strictly followed. Men and women must have the liberty to separate if they really cannot agree with each other. separation is preferable to avoid miserable family life for a long period of time. the buddha further advises old men not to have young wives as the old and young are unlikely to be compatible, which can create undue problems, disharmony and downfall (parabhava sutta).