My DIL's sister is getting married. My DIL's family is very close. Her siblings all live in the same city. Whenever we visit my son and DIL, we always see her siblings at least once. My husband and I usually take everyone out to dinner, and we include the siblings' boyfriends'/girlfriends'. My granddaughter, son, and DIL are all in the wedding. I have heard it has always been tradition to invite . .... but I don't know. The couple is not on a tight budget and there should be room for us. I like the young couple and I think they are fond of us. My granddaughter's 2 year birthday is 4 days after the wedding so we will want to fly out to help her celebrate. But I have a feeling we won't be invited to the wedding. Feeling blue about it.