At least recently[1] most Australians and an overwhelming percentage of under-16s supported the ban. Similarly in the UK[2]. This is a topic in which it appears it is the online discourse that's wildly out of alignment with broader public opinion and I'd argue potentially one of the reasons may be that it will make it harder for bot-nets to mass-manipulate public discourse so easily.

[1]https://au.yougov.com/politics/articles/51000-support-for-un...

[2]https://www.independent.co.uk/news/uk/home-news/gen-z-social...