It's considered unlucky to give the third successive generation the same name, like Robert calls his son Robert, who then calls his son Robert. That's why if you do family history research, there are very few unbroken chains of first sons being named after their fathers. The second son is fine, but three first born generations with the same name isn't. Besides, in the times when all families lived together (mine haven't moved out of one small village for over 180 years) in the same house, or next door, imagine shouting 'Robert, come and feed the chickens', how many Roberts would reply? (none if they are like my family!!!)

LTS