As we age our long term memory remains sharp. It is our short term memory that we lose first. Also what you had for breakfast probably was not all that important, but you remember your husband’s serial number because for some reason it was important to you. I still remember my dad’s SSN because it was how I got anything done as an Air Force brat.
i still remember my grandma’s phone number (in the 70’s before she moved), my aunt and uncle phone number (70’s and 80’s before the divorce), and the part number of an electrical component i put together in a factory 20yrs ago. i cannot always remember my anniversary, i get the month right but the day and yr are tricky. it will be 6 yrs (i think) in April. and since i turned 21, i have trouble remembering how old i am (born in 67 someone else do the math).
My kids long time memory is certainly differently than mine.
LOL