It’s a two way street...that being said, I have told my son to think very carefully before marrying. It really seems like men are always on the losing end of the proposition.
From this thread, you all seem to be saying happiness in marriage is an impossibility...
Full disclosure: I have one very happily married son with 2 kids, and another single son...
However, I am interested in your advice as to what to tell a 20-something girl.
Sampling bias. The thread attracts people who have been badly hurt by divorce.
Tell your daughter to pray. Pray hard, and pray that God finds her a husband for life and disposes them well for marriage.