In reality though, the world is a complex place and the ideal pretend version can only be implemented in a carefully controlled environment such as a movie, a theatrical presentation, a video game or a situation where all participants agree to or are pressured into behaving in a way in which that pretend world is real. When the rest of the world leaks in, it is impossible to maintain that pressure on everyone.
About the best we have so far is "safe search" since pornography and obscenity follow fairly regular patterns. Political correctness though is constantly evolving and requires a trained academic to determine if each piece of information should be censored or allowed. Ideally in the future we'll have google glass and advanced AI classifiers constantly scanning our vision and providing us with tape delayed audio of the outside world in order to present the world to us and filter any politically incorrect content 24/7.
For now we have to do it ourselves and ignore any inconvenient facts that may make maintaining the illusion difficult. This constant struggle to deal with cognitive dissonance can be tiresome and one should restrict oneself to heavily moderated news feeds and not using search features for now. To create the carefully controlled virtual world in an interface to the rest of the world such as Google is an overwhelming task because you would need a highly sophisticated trained AI agent to maintain that illusion and to even invent information, such as lists of Nobel award winners from disadvantaged peoples, in order to maintain the illusion.