the smaller screen. 2nd, I like email because I like to save correspondence to a file and I'm not as worried that my computer is going to be damaged like I do my phone. 3rd is that when I give up my phone number to companies to use to text me, many sell it and increase the scams and spam I receive on my phone. I have a general email that I know is going to be bombarded with spam once I used it on a site, and it's okay, rather than fouling up my phone with that kinds of stuff.