People saying they are a different gender other than what they are born in is about as sensible as me saying tomorrow that I identify as a Platypus. Parents don't tell their kids the gender that they are, they treat their kids the gender they are born into. You want to have surgery and try to change things up, I can't legally stop you from doing that, but you have no right to get all upset, ticked off, and threaten to sue people for the remainder of your life simply because the rest of the world isn't attempting to accommodate your every desire.

I'm sick of hearing about people getting sued by members of the LGTB community because they don't want to use their 100% privately owned business to do things for people that violate their religious beliefs (and most of these LGTB people doing this seem to be doing it intentionally and then claiming "emotional distress" just to crush Christians and other groups just because they hate anyone who is different than them).
I'm also sick of the fact that the emotional stability of an incredibly small portion of the human race is more important than the actual physical safety of women in bathrooms.
And the worst part about all this? It is only going to get worse. I'm sure, 200 years ago, no body imagined this ever being a thing in the world. And I'm sure, 200 years from now (if we are all still living in this present state of being), the world will be doing things we can't even imagine today.

Gender is dependent on our sex, our sex is not dependent on our gender. We are a biological species only, and we develop sociological behaviours as a result of our biology. These behaviours are not made consciously but through processes in our bodies through our entire life. When we are asked at the hospital what gender our newborn child is, we give the physical answer, which in biology is referred to as our "sex".

If a person later in life decides to have a social gender that is different from their sex, that is that persons choice. But being a young individual, their brains have not developed enough to know consequences of their choices and what their identity is. For parents in that case to not making the decision for the child that they find the most appropriate, is lazy and irresponsible.

I don't think anybody should be able to go through gender reassignment therapy until they are at the legal age of sexual consent, and only per their decision (a parent can't decide.) Sure, I know it looks more natural if you start a kid at 12, but a 12 year old really doesn't have the mental faculties to be certain about their preferred gender. This is especially true if you believe in things like gender-fluidity. The negative health risks also must be considered, and a 12 year old just isn't really considering that. Wait until they are 16-18 years old, and I am sure many trans women and men can become beautiful and happy with themselves regardless of when they start.

Women have evolved to be the main caretaker for children. That's why I listed those examples to show my point to you. They're wired for it mentally and emotionally. Before they're even teenagers, they dream of having babies. Males for the most part don't ever think about having babies til a woman says she's pregnant or when he's trying to have one. So you're asking me to prove the accepted belief on which gender is better suited (overall) to raise a kid?  I wasn't even expecting someone to actually debate me on this.  The vast majority of the judges in the US will rule in favor of the woman over the guy in custody battles. 

Women by default are better at raising kids than guys. That doesn't mean that a gay couple shouldn't raise a kid or that single guys shouldn't raise a kid by himself. 

You're the one challenging the most common held belief in the world that women are considered the best suited for raising a child. The burden of proof is really on you. 

It is a psychological problem if they "feel" like they are in the wrong body considering one cannot know what it is like to feel other than themselves...

If a perfectly competent individual wants to become the opposite sex through surgery, this should be denied due to the hypocratic oath.

When you have met and worked alongside someone who's physical sex is at odds with their gender identity, when you've witnessed the psychological and social anguish it causes them, when you've watched the painful, several-years-long transition through hormone therapy and surgery to realign themselves physically, when you've observed the result to be the same person, but happier, more at one with themselves, and in a gender context that actually makes sense compared with the one they were born in, you'll understand.

I'm not directing this as a slight to you personally for your opinion - I didn't understand why people felt the need to reassign their gender, either. Now, having seen it for myself, I do understand.

One thing I would point out, though, is that someone who finds themself in this situation is not pretending to be someone he or she is not. In the case that I witnessed, the person was brave enough to accept rejection from her family and her female partner so that she could be true to herself and become male. And in fact, after it was all done, his family took him back and accepted him as a son.

In response to the question raised by the OP, and based on the knowledge that hormones can do some pretty strange things during puberty and adolescence, I believe that in general, it's a decision that should be made by the individual when they are adult.

what about a man that feels he is a dog?

or feels that he is supposed to be parapalegic, and wants to cut off his legs.

is that sane

It definitely will get worse. However, this is nothing new in the world. It is just more open and accepted nowadays. Unfortunately being religious, especially Christian, will eventually be considered a hate group and be persecuted.

I think that you're misunderstanding me, Ka-pi96. Perhaps this topic hits too close to home and that's why you're not seeing the point I'm trying to make. In no way did I say that a child is better off being raised by a woman versus a guy. I said that women are better suited for raising kids (as in nature gave them the tools to do so). There's a important distinction there. 

I'll try to put it another way. Person A is naturally gifted at playing soccer/football compared to Person B but that doesn't mean that Person A is a better player than Person B. You're taking offense when there's no offense to be taken. 

What makes yours factual? You think what some group of scientists put down is always true?

Bradley Manning after going to prison decides a sex change. what does this got to do with chromozones or self image?

Some bookworks are usesless and misleading which would be realized with time by then the harm has been caused.