I am 61. I was born just before WWII ended.
No Jet Travel
TV just emerging.
No automatic washers in homes.
No wash'n wear.
No Microwave ovens in homes.
No McDonalds etc.
No Interstate Hwy System
Transcontinental travel dominated by trains.
No transistor based technology.
No silicon chip based technology.
No polio,measel, chickenpox, whooping cough, flu vaccinations.
Doctors made house calls.
No rock n roll stars.
No FM radio.
Horses were still used by junk collectors.
Coal was still main way homes were heated.
Around 2 billion people.
"Colored" restrooms.
Only 2 nuclear weapons. And only one country had them.
No sattelite communications.
Most people didn't have private phone lines.
Tires had tubes.
No birth control pills
My father would be 97 this year. He died in 1995. Most of the changes in HIS life took place in my lifetime.
But most of the major changes occurred before MY children were born.
So it appears there was a burst of change during my life time. But it is tappering off. The difference between my parents life experiences and mine are greater than the difference between my life experience and my children.