Don’t criticise the way people talk in their native language. All languages change and evolve, and if this mode of speaking sticks around it will be because it serves some kind of purpose. People who don’t like “uptalk” are simply not aware that language changes all the time
http://www.huffingtonpost.com/entry/the-internet-is-freaking-out-over-this-jeopardy-contestants-voice_565469e1e4b0258edb32d5d1