Blended families must have been blended for a long time. A number of families are blended, but they fall apart because the more children there are, the more difficult factors there are, depending on the state of the relationship, the break-up and so on.
However, in economic terms, a first break-up, in 90% of cases, in general mainly impoverishes the woman. Men are impoverished as well, but, since we know there is no pay equity, it is mostly women who find themselves in poverty.
If a second union occurs, that leads to specific situations. For example, in a blended family, family allowances may be lost. Family allowances are often based on family income. So when women remarry or have a second union, they in fact lose money. There are economies of scale because they are living with someone, but, at the same time, they lose income; that's clear. Some things must be reviewed regarding taxation, because a blended family is different, even though it is a family.
In the case of second, third or fourth unions, and where support must be paid after each of those unions, that obviously impoverishes couples as a whole—that's definite—more particularly, women. It isn't because you're in a second union that you no longer need support for the children. Sometimes the fathers try to go back to court to have support amounts reduced, as a result of which these women in fact suffer a drop in income. So there are various situations, and blended families generally aren't very rich either.