Great news for mice.
What if I want to identify as a trans-species mouse?
Don’t you worry about cancer in mice? Even if it worked in humans it will either (1) be illegal in the United States or (2) be prohibitively expensive or (3) moderately expensive until bought up by a large pharmaceutical firm who will jack the price up 10 times AND (4) will be cheaper elsewhere in the world by a factor of four at least.