… As for your musing on
ages, it makes me wonder -- what was I doing at age 12? ...
Oh dear, memory of things over 50 years ago has gotten fuzzy.
Perhaps, just perhaps, it was the year I saw my first baseball games live.
With some classmates from school (and definitely parents tagging along, though not mine).
It was during the week, and what was then called a "twi-night double-header".
Yep, either game two ended past midnight, or at least it was past midnight before I got home.
My parents were bouncing off the
walls and ceilings of our apartment by that time (they
never got the hang of baseball, ever).
To edge nearer to topic again, this was in
the old Shea Stadium (where in high school times I went alone, old enough by then, to see a Saturday daytime double-header).
The Beatles held one of their last-ever live concerts there on 23 August, 1966 (when my parents and I had just entered the US for their eight-year plus and my nine-year stay).
The last-ever official live concert was at San Francisco's Candlestick Park on 29 August 1966.
Problem at both was that the band would have needed megawatt amplifiers to be able to overcome the concrete-shredding, senseless teenybopper shrieking.
Put an end to their touring - very much to the benefit of their musical development.