You seem to miss the point of co-ownership. The social security number does not limit ownership. There would be no category of co-ownership if it belonged to the owner of the ss#. They would then only allow singler ownership with a beneficiary. I am not worried. The one who sells the bonds - can be either one (I trust my daugher), and then pays the tax on the bonds, will then own the bonds. I don't think that the govt will be tracking how the funds got there 5, 10, or 15 years from now. They also need to be listed as co-owner if there is any chance that it would be used for educational expenses.
------------------
Ms.DtG