Spoken like a man who has read or published a journal article or two
My take on likes and dislikes... I would do away with dislikes, and restrict likes to +1.
On the child... I would want to have a better understanding of the science before Yettee the judge ruled, but I think I'm against anyone below the age of around 16-18 taking hormone altering medication for such a purpose. However I have no problem with a child of any age changing his or her name, wearing clothes associated with the opposite gender, etc. I think a responsible adult should talk to the child and weigh the decision but I'm OK with it, and even think it might be mentally healthy and the right thing to do if the child feels the need or strong desire to do so.