Sadly I no longer know my friends phone numbers, since the advent of smart phones. But I still know the phone numbers of anyone I regularly dialed as a child, 3

Sadly I no longer know my friends phone numbers, since the advent of smart phones. But I still know the phone numbers of anyone I regularly dialed as a child, 30 years ago. I have all my important numbers memorized - SIN, multiple credit cards, driver's license, library card, health cards, all my financial account numbers, and the same for my partner. Do you do that too?