The correct use of Google depends on the people who work with it.
It's true this makse easier our search of knowledge, and we can know too many things in less time than in the past, this is a very effective tool that simplifies our lives, but there are people who use it not to increase their knowledge, just to do a homework faster or just because they are lazy, so people lose the interest in know.
Another case is that people search for some information but they don't use the time properly to search other websites to know about different points of view, making them one-sided opinions.
Furthermore, the children use the famous copy/paste, but the don't know this is a nocive way to learn, because they don't want to learn, don't investigate by themselves, only want to accomplish with their homeworks.
Nowadays, the people have lost interest in learning because Google gives us all the information we need to easily
