Every government would like this, but I think the issue in the UK is that there's legitimately a lot of public support for "protecting" the children in a way th

Every government would like this, but I think the issue in the UK is that there's legitimately a lot of public support for "protecting" the children in a way that other countries don't have - so while every government would want this, UK succeeds where as most others don't (yet?) because commercial interests override it (this kind of filtering at scale is not cheap, so ISPs would rather not do it unless they are either forced to or get good PR from it).