It is rude to leave family out of ceremonies.
John and Mary are getting married and are deciding on who to invite.
John wants all his friends to attend.
John asks his mum to help with the guest list so as not to offend family members.
John decides to exclude some of his cousins, so he can have more friends attend.
John is pleased with the good mix of friends and family that attend the wedding.
John gets chewed out by his mum for not inviting family.