People tend to be absolutist about whether it’s better for kids if unhappy parents get divorced, but as the saying goes every unhappy family is unhappy in its own way. Some marriages are hell for everybody involved and need to end. I put abuse situations in that category of course and also marriages that have so much animosity that they can’t stop fighting. On the other end of marriages that may end in divorce are situations where one partner gets wanderlust and doesn’t want to be tied down by a family or are disappointed that their lifestyle isn’t what they expected. In those cases it is probably best for the kids if the parents learn to be happy within the bounds of their family.