Do not leave one child out of a family trip, unless you want there to be some very negative family dynamics for the rest of your lives together. He'll always remember being excluded from this. Don't do that to him or to your family.should I feel guilty bout not taking stepkid 1 of 3 to wdw because , he's spoiled and doesn't behave. He lives with bio dad , the other 2 are great no issues girls 10 16. Boy 11.