Separate camps and enrichment classes even though siblings want to attend the same classes and camps. Why you ask? Its because the siblings don't get along or because one child will make the other child miserable if they are in the same space. Parents, avoidance is not the answer. I realize that you want to keep the peace in your home. Children need to learn to get along with their siblings. You can't just avoid a boss or co-worker because you don't get along with them.
Sit your children down and talk to them about your family values and what it means to be a part of your family. Every family's value system will be different. You might say that members of your family are loyal, kind, loving, trustworthy, forgiving and don't intentionally hurt anyone physically or emotionally.
Tell your kids that if they don't adhere to the core family values, then there will be consequences. If siblings are not encouraged to have a tight bond with each other, more than likely they won't encourage it when they have families of their own. A good family structure and bond, help people function better in other relationships.
When my daughters would not stop fighting with one another, I made
them sit down and write a letter to each other explaining why they
loved each other. It is important that parents promote healthy
relationships among siblings. The root of healthy relationships start at home.