Just because you can’t see yourself doing it doesn’t mean every other stutterer can’t. Some people just don’t share the same inclination as you. Every stutterer is different. Some stutterers don’t let their speech hold them back from doing what they want to do. And if there is a chance of overcoming your stutter, you will have to put yourself in freighting predicaments like jobs with speaking roles. You will have to be okay with stuttering in speaking roles or being possibly laughed at by other people. Facing challenging situations is the only way to improve your stutter. I’m not saying every stutterer should be a sales agent but if a stutterer does want to be a sales agent or a public speaker, there’s nothing wrong with that.