Right, that's definitely true! I don't think someone /has/ to have a speech therapist (Although it does help greatly for many, I think) but moreso just someone neutral to help you with practising fluency habits so that you're not all on your own. I think I mostly have the image in my head of someone who is already young and socially vulnurable. Reading up on fluency exercises is good - but then trying to put it into practice all on their own, and setting high expectations, might cause them to only get more nervous. That's why I think it's best done checking in with someone trusted who understands what stuttering is every once in a while, be it a parent, gaurdian or speech therapist.