I think peope forget one thing, just because you dodge something, does not mean that you are safe against that thing again.
Sasuke overstimated A speed and the right time to trow the flame at the kage. the only man who has dodge it.
But if a swordman comes at you and you dodge his first attack it does not mean that you will be able to dodge the nextone to come.
If that were the case than any battle its rather pointless just because 1 guy dodge your first 2 punches lol!
Battles are more complex than that, and its also nessesary to have the right time for it, if someone dodge you, try a again in a different way, even if the oponent its fast, you might end up finding a way to land a hit on it lol..
For real kids are to simple minded on how things goes... dodge my blow, so i give up, i wont be able to land a hit if i try again lollllllll stupid logic