US immigration policy contravenes the Convention on the Rights of the Child, which all United Nations member nations have ratified except the United States. The convention recognizes that children need special assistance and legal protection and prohibits deprivation of liberty.
AMA J Ethics. 2019;21(1):E58-66. doi:
10.1001/amajethics.2019.58.
Conflicts between federal and state laws governing marijuana, lack of evidence about its efficacy as a treatment, and physicians' inability to predict or control dosage would all be aided by reclassification of the drug that would let clinical research go forward.