What's odd is that those of us of a certain age started with no gears, then got three, then five... and unless we were seriously keen on cycling it stopped there.
You used what you had and that was all you had. This whole fascination with having a vast spread of ratios is (relatively) new.
My poshest road bike has 20 gears, between 53/12 and 39/23. That's fantabulous for me, although a mountain would be a challenge.
But at twelve I was cycling up serious hills to the cinema with one gear or three...
I do like having clickety-click access to insane numbers of gears ergo-wotsits or similar on road bikes and MTBs, but nothing qite matches the slo-mo strain up a monster hill and the AAAAAAAAAARGH! descent at 170+rpm the other side.