Yes, I think everyone needs a mentor. It's hard to find someone who knows everything and has all the answers but there are always people around us who can help us in different areas of life.
Everyone has their own expertise in certain areas so when we need something that we don't understand at this time, we have to know who to ask so that we can find better guidance on what we want to know. Because if you are looking for a mentor who can do everything, it will certainly not be easy to find, especially if the person also has their own busy life so it will be quite difficult to meet at the right time with such a person.