Brother believes in tradition. He does not even know source of tradition. He sticks to tradition ONLY because he identifies with it, not because he is convinced by it.
For him "Group Identity" matters more than DAD. So fact that address of DAD was told by some foreigner iks him. He says he will rather stick to tradition of own group than true address of DAD because he pefers group over foreigner.
His arguments are based on human weaknesses, not logic and objectivity. He is not seeking to find DAD. He Just made it an Identity conflict.
