(CNN) -- When my parents bought their first mobile phones about 10 years ago, I didn't think they'd ever get the hang of using them. Mom would answer my call from the front of the line at Starbucks and say, "Hello darling, yes I'll take the tall thanks, what is it, James do you have any cash?" all in one breath. My favorite were the random, cryptic one-word text messages like "I" or "soon" or "shirt."