It shouldn’t be girls only. Boys go through everything we do with puberty except for periods. They deserve respect.
P.S. Believe it or not, I’m a girl. But I believe, that if women and girls, and young lady’s, want to be treated as equally and fairly as men, and boys, and young men do, we need to treat them fairly too. Boys get embarrassed too, they just don’t show it or express their feelings like girls do. And if people don’t feel comfortable talking about puberty, then you should respect that. Not make a post asking them to outside of their comfort zone. They’ll talk about it when they’re ready. And it’s not a problem if they don’t want to, it’s just how they feel.