@bot You aren’t the arbiter of what someone else can do with their own body. And no, it doesn’t seem reasonable at all. Dysphoria can be treated. That’s like saying someone has to live with diabetes for 3 years before we’ll give them insulin, _just to be sure_.
Not to mention that treatment can be denied because of, get this, depression! Dysphoria can cause depression. So you have to live 3 years being intensely dysphoric, and also not depressed. That’s bullshit is what that is.