I hear of this issue on Rabbi Rosner's excellent Daf Yomi shiur, and it is one that was discussed some time ago when I was nearer a kehila, that one has no recourse to reacquire, e.g. a lulav, from a minor after bestowing it. But I wonder, how is it not a remedy to enslave such a son, reacquire all he, "owns," because kona eved kona rabo, then emancipate him with the balance of his belongings?
H David , Roanoke, VA
Shalom,
It's great to hear from you! This is a very interesting possibility you raised. I am tempted to believe that certain considerations would make it difficult to definitively adopt that exact approach. For example, if we want the child to become a slave, then it is important for us to realize that typically the only way a Jew becomes a slave is either because he is sold by Beis Din because he stole (Shemos 22:1), or because he sells himself into slavery due to poverty (Vayikra 25:39), or finally there is the case of a girl whom her father sells as an Amah Ivriyah (Shemos 21:7).
In addition, the principle "whatever a slave acquires the master acquires" applies only to an Eved Kena'ani, but not to an Eved Ivri.
It is nice to hear that you enjoy listening to Rabbi Rosner's Shi'urim. I am a great fan of his as well.
Warmly,
Yishai Rasowsky