I mean to say that if you can write and are unable to express your ideas, you probably won't be able to do so verbally either. In the case of kids, of course,

I mean to say that if you can write and are unable to express your ideas, you probably won't be able to do so verbally either. In the case of kids, of course, that's true, but just because they can't write. But if you can (and most people can) just having the option of voice input won't help. I refrain to take a stance about how much of the population is unable to articulate thoughts in writing, (it's probably not great though) but it's probably going to be comparable with how many can't express themselves verbally as well. I'm talking here about more complex ideas of course. I'm sure average communication is functional.