Most of you reading this have only ever typed on an electronic keyboard.  Lucky you.   
     I learned to type on a manual typewriter.  I used the hunt and peck method until high school. In ninth grade I took typing class to get out of getting constantly beat up in shop class. It was a valuable skill to pick up.
   The disadvantages of typing on a manual machine went far beyond just the inconvenience of a clunky, heavy keyboard.  The biggest bugaboo was mistakes.  These days if you make a mistake while typing it's no big deal.  You just back up and do it again.  In olden days if you needed to correct something you had two choices.  You could erase it with a pencil eraser, being very careful not to get the eraser waste into the works of the typewriter.  Often one would accidentally erase a small hole right through the paper. Then you'd have to throw the whole page away and start over. Or there was white out.  White out was white paint in a little bottle with a tiny brush built into the cap.  You painted over your mistakes then after the white out dried you typed over it.  Hopefully you got the typewriter lined up on the page exactly as it was before or the corrected letter would be slightly out of line with the others.  You had to white out or erase each and every time you made even the slightest error in spelling, punctuation, or wording.  There was no auto correct.  Trying to type a perfect paper for a grade could be maddening. 
     If you needed copies there was carbon paper.  You actually had to put sheets of black paper that made everything filthy if not handled properly between your sheets of regular typewriter paper to get copies.  This technology was limited in that you could only make a few copies at a time.  Otherwise your paper and carbon paper sandwich would get too thick for the typewriter.  And of course every mistake you made was on every copy with no way to correct them other than the aforementioned methods. 
     Yet typing happened and many pages were typed perfectly.  You learned to be more careful by nature.  In the 1980s manual typewriters were gradually phased out, thank God.
      Electronic keyboards are a blessing.  Most of you will never really appreciate just how much so.

I learned on a manual typewriter in school. Never was good at it. Barely passed. When I see one at an estate sale, I point it out to a kid and tell them that's the original word prossesor. The look on their face is interesting.

I tried using a manual a long long time ago.
My biggest problem was that my brain and fingers don't go at the same speed.
So i was forver hitting the keys too fast and you have several moving at once and they get jammed.

Computers saved me