>Are there organic movements in Germany, UK, USA, Norway etc of common citizens agitating for social media controls for kids? Are they actually composed of citizens? Are they funded by grassroots organizations?

Yes, tons of them honestly, in particular in the English speaking world. NSPCC or the Molly Rose foundation in Britain, Collective Shout in Australia who recently made the news after approaching I think payment providers who processed sexually charged games on Steam, etc.

Child safety online is if anything the most heavily activist driven topic there is. The tech companies and the shadowy people visiting Epstein's island are not known for their efforts to reduce children's access to the internet, Mark Zuckerberg is not in favor of gettting viewer people on his platforms.

This is reflected in polls too. The Child Safety act in Britain had vast support from the population, seven in ten people I believe, about 80% among women. Insofar as pressure is put on regulators to not adopt legislation of that sort it's coming from the people who you seem to think are responsible for it. It's largely elites who are funding organizations to scrap internet regulation, which is understandable given that it makes financial sense for them.