They're not even remotely comparable from a reliability or bandwidth standpoint, which is important for high quality streaming content (4k video from Netflix, for example).
These things will matter more as high quality content increases in availability. I also suspect you haven't recently tried to upload any amount of volume (photo albums, videos) on your mobile connection. I'd even consider it dangerous to compare the two, because the only folks I've ever seen consider them analogous are the ISPs themselves and only during takeover conversations, and only in reference to monopolies for service in particular areas (Comcast isn't your only option, you could also use your phone!).
Not to mention how completely untenable it is to play video games on a mobile connection.
These things will matter more as high quality content increases in availability. I also suspect you haven't recently tried to upload any amount of volume (photo albums, videos) on your mobile connection. I'd even consider it dangerous to compare the two, because the only folks I've ever seen consider them analogous are the ISPs themselves and only during takeover conversations, and only in reference to monopolies for service in particular areas (Comcast isn't your only option, you could also use your phone!).
Not to mention how completely untenable it is to play video games on a mobile connection.