When a person commits suicide, they're not only ''escaping'' problems, they're escaping life. When we say we're going to escape something, it means we're running away from something and going to another place where we won't experience whatever is leading us to escape. But that doesn't happen when a person commits suicide, because we don't stop having those problems and have a good time instead, we stop existing in the world. So technically, committing suicide is not escaping problems, it's that person deciding to stop existing on this world and to stop any chance of him ever being happy. He just decides to leave and that won't solve anything and once he dies, the whole concept of him having issues won't be valid and we won't say he escaped his problems, because he didn't escape them. He just stopped being here altogether.