I see that there is a possible move afoot to have XXX domains so that web pages with adult content can easily be avoid, or found, if that sails your boat. I think it an excellent idea, then it should be easy to have filters to make certain no one on a specified computer can access such a site. However would it work? Would there still bee adult sites that were not XXX designated?
Almost certainly, BB, as adult sites will want to circumvent any filters.