The younger brother gets married first, which is an old tradition and idea. Especially in the countryside, it is unlucky for an unmarried brother to attend his younger brother's wedding. Big day, Brother Shan should avoid it. My brother may be under pressure to get married first, but it is also my bounden duty to help him get married. Marriage is a major event in life. A brother should attend his brother's wedding, witness his happy moment and send him good wishes!