I knew a couple of people going through the process and nobody in my school bullied them at all, it was sort of just taken on the chin. I found it quite odd because I had been bullied pretty mercilessly for years there and I didn't quite get how the two stories were that different.
Eitherway, I think the struggle came from within rather than through external attitudes. I also think Britain has had a lot of social change shoved on it very heavily, very quickly, and it's simply trying to catch up. Ignorance isn't a big deal as long as the ignorant are willing to learn.
I personally don't understand the issues surround transgenderism and gender identity as much as I'd like but open to understanding it and generally place my own thoughts on it aside when talking about it with a trans person. If my child came out as trans I'd support them 100%.
A close friend of mine came out as trans (GtB) and was incredibly nervous and scared about my reaction and I just basically said something along the lines of, "cool, brother!" and he felt so relieved I'd just accepted it then and there and respected his pronouns and gender identity as a whole. It really got to me how he thought I'd be weird about it. It really did.
I think that the world needs to stop viewing these issues as the next trend and rather as something thats only just coming into the public eye but has always been there. Sex-changes are different in that respect but the actual gender dysphoria and transgenderism has always been present in the world as has homosexuality and bisexuality, etc. It should also realise that these issues are real to a great number of people - whatever your opinion is, if its harmful, let it alone.