Why would someone pay for a vacation they are no longer invited to?

It has been years since my husband and I went on a family vacation with his siblings and parents. The reason we stopped is because every time we did go on vacation together, it turned out to be a disaster. People kept fighting with each other, we couldn’t agree on a single activity to do together, and by the time we came back home, none of us were speaking to each other.

So, my husband and I made the executive decision to say ‘no’ the next time his parents offered a family vacation; we preferred to stay out of the drama. Now, the rest of the family goes on without us and comes back furious at each other, but at least we are not part of it.

Some families are not built for joint vacations; that’s what I keep telling them every time they return from a failed trip. It’s okay to acknowledge that a family is built for a Friday night dinner every few months, and no more. If not going on vacations together means the family gets to keep the peace, I definitely think it’s worth it.

Unfortunately, the family below does not agree. They haven’t even gone on vacation yet, and they are already fighting. It all started when two brothers decided to buy their parents and sister tickets to Hawaii, then decided to make it into a family vacation. It was supposed to be a fun time for everyone. However, the two siblings could not agree on accommodation: one wanted a resort, while the other insisted on an Airbnb. This led to many arguments that resulted in one brother getting kicked out of the vacation altogether. The family decided to go to Hawaii, but without him. 

When the brother discovered that everyone still expected him to pay for the tickets, he firmly refused. Why should he pay for a vacation he is no longer invited to?