Just a Grumble about being perceived as too old for technology by a young doctor

At a certain doctor's visit last week, they were rescheduling me for the next visit and I was literally typing it into my calendar on my phone and saving it when they gave me the choice of either writing down the next appointment on a piece of paper or offering to show me how to save it in my phone calendar. I'm 46. I'm a younger gen x. I've been using my smartphone for longer than this doctor has been paying his own car insurance. I've been using a digital calendar of some kind or another for decades. Do young people really think we don't know how to use basic features of current technology?? Am I going to start having more of these cringe moments?