Sibling rivalry takes many forms and has no age limit. How do we work with it and not make it worse?
Let's take a minute and look at the types, reasons, the how some parents deal and then the "magical" solution.
Teasing, mean words, I hate you, I wish you would die, physical fighting, jealously, needing attention no matter if it's negative or positive and just plain old nagging.
Some parents choose to be negative and yell and punish their children. Remember negativity breeds negativity and so the cycle begins.
Here is the magic. Instead of being negative share empathy, give options and then empower your children. Older children can choose to take a mentoring role. Younger children can learn to model empathy. Both groups can learn problem solving that they will use in the future.
Forced aplogies actually hurt the process of building relationships between siblings. Instead offer suggestions on how to rebuild.
In separate homes, make certain the children aren't mocking their parents. Keep conflict to a minimum, unless it's progressive challenges that can be overcome easily without belittling each other.