When I was still teaching, the trans kids' classmates were more invested in the transition than they were...
I only knew trans identified girls. (4 in total, in the classroom.) One was 'questioning', one was stealth. The other two associated with other girls and used the girls' facilities.
I don't know what happened to the 'questioning' girl, but one of the others detransistioned at school and the other two detransitioned after they left. There's no doubt in my mind that peer pressure (and looking 'cool', perhaps) had a great deal to do with it.