When you are watching someone dance, you are watching more than just a person dancing. There's hours of failures & experimentation. You are watching days, weeks, and months of frustration & pure joy. You are watching a piece of heart, part of a soul, a moment of someone's life.
Same goes with being a fan of something/someone. Whether it's a certain craft or a group, not because they haven't made their debut yet as "idols" doesn't mean they are not allowed to have fans. Stop invalidating the love and support we get from all the lovely people around us.