So I read the news, and I noticed that minors don't have to pay the fee for the resident status (which should be completely voluntary in my opinion). I also noticed that the parents of a minor have to join Asgardia and pay the fee for the minor to stay a resident.

I am a minor, and my parents are not registered as citizens here, and they will definitely not do so. So I will become a 'follower' in a few months, right?

If you are a minor you can't absolutely take legal responsibility for decisions you make. These decisions must be made by legal parents or legal custodians. Therefore you should remain a follower in my opinion until you come to an age to make a decision regarding citizenship.