Most otherwise competent therapists are rather incompetent when it comes to trans stuff.
It depends on the country or state or province. My opinion (as well as the opinions of some other trans people) is that we can do with a little less gatekeeping re: these lifesaving medicines and surgeries. If someone's seriously committed to transphobia, talking about the gatekeeping that already exists will be ineffective. If someone isn't, but has transphobic beliefs, I think it'd be better to explain why it's important that trans people get bodily autonomy and choice.
Of course, I try not to talk with transphobes. So I'm shooting in the dark here.
Oh, interesting. I've definitely heard this before, as well as the other way around (estrogen eases crying). Personally, HRT hasn't really changed me emotionally, and I've been on it for several years. So either there's some body weirdness going on with me, or it's some kind of placebo effect related to our cultural beliefs around hormones.
Of course, "boys don't cry" is applied to literal babies, so I reckon it can't just be hormones.