Many of us can... some of us can write code in a variety of languages. But in my own family, we even have a person younger than me who was given an iPhone and at best can make calls and send text messages. Can't even figure out how to take a picture and send it in a text.
I gave another family member a subscription to Netflix. Had to drive 120 miles to their home to activate it. I have a daughter with 4 law degrees and who speaks 5 languages proficiently and several more adequately... but who has to send me her laptop every time she replaces it to set up her accounts and software.
There are many people who are technically challenged, but the older you look at, the better the chance of them not "getting it".
Simple test: ask if they understand the difference between "memory" (RAM) and "hard disk" or "SSD" (Storage). A huge percentage of people over about 45 or 50 have no clue. Heck, they don't know the difference between an SSD and a HD (They think "HD" is high resolution television, usually).