^you're absolutley right!
I got my new GoPro a few days ago and we also bought a set with several mounts, including a selfie stick. When I tried it at home, I used it to see our flat from different angles and it looked funny. But I don't take it to theme park or even on roller coasters because that stick doesnt looks very safe. Just as I pulled it out I saw that it wasnt that stable and if the GoPro is at the end of the stick which isn't that light and and the stick is also a little bend. If you think what happens on a roller coaster with several G's....
PS: when I used it in our flat, it was my stuff that would get broken if I didn't was careful!