Let's say we agree age can be changed legally. Who is to decide _what_ age it should be changed to? What if the person wants to be 20 years younger, but is "ac

Let's say we agree age can be changed legally. Who is to decide _what_ age it should be changed to? What if the person wants to be 20 years younger, but is "actually" only 10 years younger? Is it going to be determined by a sort of medical exam? What if they want to keep changing their age up and down every year for whatever reason? I just don't see a good way for ensuing "fairness" and non-manipulation. Very glib: >>Perhaps you will say that what is appropriate for frozen people in a hypothetical scenario is not appropriate for real people in the real world. Nevertheless, the difference between thought experiments of this kind and cases in the real world is only a difference in degree, not a difference in kind.