The author compares the treatment of minors to the historical treatment of adult minorities and adult women. Minors have always had protections not offered to adults of any color or sex. As a society we have picked an age where privileges and responsibilities attach; at the same time we protect them from the privileges and responsibilities that we think are beyond their level of maturity. Would the author deprive them of these protections at 17, or 15, 13? If you argue they can make a life changing decision, alone, at 13, then are you also arguing that they should be charged as adults in the criminal courts?
Yes, it would be nice to look at every situation individually, and the maturity level of every teen individually. But that isn't going to happen; you can't make a law that applies to one 13 year old but not to the next.
As a minority woman, I find offensive that the author thinks that depriving a CHILD of the ability to make certain decisions on their own is the same as applying that treatment to adults.