I have a transgender son who has gone through all the 'living as the preferred gender' period, been put on testosterone and had chest surgery. He, of course, still has his womb, ovaries and vagina - I have no idea at this stage if he is considering having the genital restructuring. This is my youngest child, the only one born a girl and brought up as a girl, and who began transition at the age of 19. He is now 27. He is not gay, and does not find male bodies sexually attractive, so, of course, before realising he was trans, his sexuality was a minefield for him. Having to use female toilets when he was still looking female but openly living as a male was horrible for him. He has been quite active in the trans movement until recently (he's currently living abroad on a temporary teaching assignment) and written many blogs on the topic. Here is a link to one if anyone would like to read it:
iamadrainonsociety.wordpress.com/2018/02/04/enforcing-birth-gender-toilets/
I will sign this petition, because it is worrying. If anyone can certify themselves as the opposite gender to the one their body says they are, surely this could open the way to predatory fraudsters? Admittedly, these would be sick, unhinged individuals, but I fully understand that this could open a door that is currently not available. I am glad my son had to go through a lengthy trial period in his preferred gender before being taken seriously and given his certificate. It meant that the Gender Identity Clinic knew he was serious and sincere about his transition.