It is a simple matter. A son who is supported by his father is not obligated to light (Hanukah candles) on his own, even if he has his own room and even if he is married – this is the letter of the law… If he is married and wishes to go beyond the letter of law and light in the room in which he and his spouse sleep – so as to embellish the commandment – he may do so, but may not recite the blessings. He is to rely on his father's recitation of the blessing, and should light without reciting it  himself… This is common custom here in Baghdad, may God protect it; those who have not yet married do not light at all and depend on their father's Hanukah menorah. Once they have married they do light on their own, but without reciting the blessing, and are exmpt by virtue of their father's recitation. This is how I act. When we light, I and my sons, may their Rock protect them and their lives, each go to his room and stands next to his Hanukah menorah and prepares to light. Then, when I light, I raise my voice so that they may hear me recite the blessing and thus fulfill their obligation to the commandment. The moment they hear the blessing, each lights his own Hanukah menorah, and then recites HaNeroth Hallalu.