It’s not directly banned in Denmark. It’s basically non-existent, and as such difficult to find people who cares enough about banning it.

Indirectly it is already illegal, because it’s illegal to treat anyone for anything against their will. This includes children.

However, there are still people who send their children to a therapist or a doctor. I don’t know if a ban would change their minds in any way. Perhaps it’s better that the parents get to have that conversation with a doctor instead of just being angry at a law and seeking help at alternative places through religion or whatever. They’d probably do that with or without a law anyway, so if anything, it’s actually better if they have the opportunity to talk to a professional therapist first without just getting told off.

Politicians don’t want to deal with it. They’re afraid the backlash from people who are against all things “woke”, would be bigger than the support from anyone who actually cares about the virtue signaling.

If the practice is actually widespread and secretly done in religious circles, we would benefit from hearing those stories.