In France they were funded by the social security up to 15%, but luckily this stopped in 2021. I had some as a kid and my mom is still a strong "believer" in them. I don't see any harm in selling them IF and only if they don't prevent people from taking other "real" treatments. But other than this it's just placebo.
> and only if they don't prevent people from taking other "real" treatments
This is the dominant harm, yeah. As we know from infosec, few things are more dangerous than a false sense of security, and that's exactly what ineffective drugs provide.
Most of homeopathy usages target little aches and whatnots that require no treatment (beyond patience), so I guess it could also act as a buffer against overmedication.