For some, it’s more than just “getting embarrassed”. It’s physically and emotionally painful, and if you have serious *blocks* where you end up changing your words and having frequent odd pauses, you can end up *appearing* exceedingly incompetent. After I got some *effective* tools, I was then able to put myself in uncomfortable speaking situations. But many ppl are given very ineffective techniques (take deep breath, move tongue, odd lengthening of words) which seem to make it harder.