Traveling gives you a chance to experience life the way you want to, and so you can learn from the things that you go through. If you keep reading without experiencing you will never grow as a person and develop yourself. That's why traveling will help you turn into a wise and grown person.
Reading a book is better than traveling because when reading a book we can develop ideas with life experiences from the information we read. Reading is the best source of information, books have been around for hundreds of years, the pen and paper has been around a lot longer than airplanes and advanced means of transportation. Sometimes, you can learn about other people's experiences through their writings, and then you can apply the life lessons they shared and benefit from them.