Older people love touchscreens on laptops and use the feature very heavily (I think my mother touches her Surface Book's screen in laptop mode more than the trackpad). I see it as a nice to have when I'm recommending laptops for others even if I hardly ever use it myself. It doesn't have to be a revolutionary new input style that apps transform to make use of, and I think that's where Apple gets stuck because that's so alien to their design philosophy.