I'm thinking of "ruining a tradition"
Really? What exactly do you mean by ruining a tradition?
I will see if they would feel better without me there.
You shouldnt go out of your way to ruin a tradition. Also dont think that your family is going to not want you to be there! Im sure if you asked them then they would tell you how much they wanted you there.
Maybe if I don't go they will want me to.
I am certain that they will want you to, because traditions are important to a lot of people. You should try not to ruin one, because it could hurt a lot of people's feelings that you care about.