If the keep any money back for a small purchase for themselves, if is often with a feeling of guilt. Ann Oakely's clasic work 'Housewife' showed this trend, which has been replicated over and over again. Men have been shown to hand over for family use on average one third of thier earnings, keeping two thirds for personal use. Yes, that is what I said. Mainly because they have been shown to generally favour less violent demonstrative methods, such as overdosing on pills, which means they are more likely to survvive the attempt, whereas men, who are socialised to be more violent in the first place choose more violent methods, such as shooting themselves.
Women attempt suicide more, suffer more clinical depression are less likely to WANT to go on living.
Men go to war, and are conscriped as soilders, but men also start the wars, don't forget. Also, women are far more likely to be civilian casualties than men.