Well we agree. That's why we're very concerned about TRA groups like Mermaids in our schools. They're all about gender conformity. In my day, we fought so that a girl could be an engineer or a mechanic without being seen as less of a girl. Our goal was to say your sex doesn't define what you want to be or who you can love. Now you have little girls coming home from school saying "I have a boy brain" because she was interested in science or karate and some Mermaids presentation has told her she has the wrong brain for her body. And we see soaring numbers of young girls would just grow up to be normal, non mastectomy-having lesbians taking courses of hormones and wearing breast binders because being a "boy" is more acceptable than accepting their sexuality. If you doubt any of this, I linked examples up above. That's what's pernicious about current trans activism - it's not about accepting yourself for who you are but the exact opposite. When I see someone showing a class of eight year olds a big board with pretty princesses at one end and cowboys at the other and asking children where on the gender spectrum they are, I don't think that's letting kids express themselves how they want. I think it's telling kids their bodies are wrong if their interests or affections don't match gender stereotypes.
Except trans isn't like homosexuality. You don't "catch gayness". You might feel slightly more comfortable coming out if you're not the only one but it's part of who you are. We don't see that with trans identifying children. We see social contagion. Clusters of children becoming trans together. Children who become trans after being groomed to be trans on forums. I'm really not kidding - I could link you discussions about "eggs" (vernacular for a kid who doesn't yet identify as trans but can be persuaded to be) or peer pressure not to decide they're not trans and told they're traitors if they do. I never saw posters and guidance packs given to schools that actively encourage children to identify as trans but Scottish Trans guidance to schools shows exactly that. The TRA movement presents itself as being analogous to the gay rights movement, but in many ways it's directly antagonistic. Hence so many Lesbian and Gay people (but particularly Lesbians) wanting to dissociate trans from LGB. Coming out as a gay person as a young man or woman is about accepting yourself for who you are and being what nature made you. It's not about starting a lifetime of hormone treatments, puberty blockers, surgery and becoming infertile, at an age when you are in no position to have really understood how your body is changing or who you've decided to be.
Sorry to rant, but I have a feeling you are a nice person who naturally assumes it's much like gay rights and acceptance because that's how it's presented by TRA groups. If so, then like me who also was initially very positive towards such efforts, you'll probably change your mind when you see it close up. Gender Dysphoria correlates with Autism, just as anorexia does. It's a body dysmorphia disorder, just like anorexia is. Much higher in girls, just like anorexia is. And just like there were "pro-ana" and "thinspiration" sites, we now have evangelists for "transitioning". Egged on by its overlap with autogynephillia fetishism. But like anorexia, Gender Dysphoria is a diagnostic condition that requires support and treatment, not active encouragement which is what groups like Mermaids are doing.
Children are being actively harmed by this movement. It's not what you think.
(link for anyone who wants an introduction and actual stats on all this)