They're teenagers who are still looking for the person they are going to spend the teddy of they're life with. In the sho they are still learning the skills of life.
At this point because most of the wolves are still teenagers, they have anchors instead, its someone or something to keep you grounded. So when they get old enough their anchor might change into someone they love and they will get a mate, its kind of how Derek was with Paige, in a way, yes they were mates but she was what helped him find his anchor later on.
