Is cohabitation before marriage more beneficial than harmful or harmful than beneficial?

Personally, I think the advantages outweigh the disadvantages, because cohabitation before marriage is quite common now, especially for couples who have been in love for a long time. Finally, try to live together before marriage. In fact, cohabitation before marriage is to integrate the living space of two people into the living space of lovers, which can be said to be a sublimation of love. It's good for couples to try. Let me talk about the advantages and disadvantages of cohabitation before marriage:

First of all, since it is cohabitation before marriage, I think the most important thing is cohabitation. Cohabitation means that two people live together and lead a young couple's life in advance. The general requirement of cohabitation before marriage is that both husband and wife can live together at a high level. The disadvantage of cohabitation before marriage may be that it is easy to expose shortcomings and bad habits in life, leading to contradictions in love. The original beautiful lover image is easy to collapse, because it is not husband and wife, and the possibility of breaking up is still great. But cohabitation before marriage is still very beneficial. First of all, it saves a lot of rent and can make couples closer. Then, I think the husband and wife have entered the rhythm of husband and wife's life in advance, and they must deal with all kinds of problems and housework in life. These can be said to be a great test for couples, but once they go through this test and get married again, their feelings will be more stable, and it is not easy for some couples to have conflicts because of trivial matters.