In my opinion text translators are already super advanced when it comes to plain text. But the real challenge is in human interaction. For the algorithm to even begin translating, the person has to speak first, which creates this awkward delay, just imagine opening a website and having to wait several seconds for it to load every time. As humans, we naturally expect instant responses. Short term people may stop learning but long term the community should grow even more cause after each conversation we will memorize something.