My home computers are for anything internet related. I only use the phone for telephone calls, a few texts and on the go emails. I rarely surf the internet cause the screen and of course keyboard are too damn small. I don't know how kids can watch a movie on their phone, if given the choice of movie on the phone or no movie, I'd go with no movie.
I have a 27 inch screen at work and on my home computer, anytime I am not at either then I don't need to be on the internet.