You need these types of people in your life because they will always be there when you need them. They will be there through thick and thin. Sometimes you don't remember how you met a best friend, but you're just glad you did. You're glad you met them because they have been a blessing in your life.
Other types of friendship are no good. They are no good because sometimes they will talk to you and other times they will ignore you. If they only talk to you when they need something, then it is not a friendship. The person is just using you for their benefit. The more you associate with people the higher the chances that they will back stab you. If some backstabs you then you guys weren't part of a real friendship. A real friendship stays loyal even after you guys don’t talk to each other. You listen to each other and you don't judge each other, that's one of the key characteristics of a true friendship.
All in all a friendship is one that you associate with each other very well. You talk about each other’s problem. You go out and hang out with each other. You talk to each other all the time not just sometimes. You don’t back stab each other when things go wrong. To me this is what a true friendship is. I hope I have educated you about true friendships. I also hope you choose your friendships