And when a mistake is deadly? Should we remove all safety systems so we can deal with the consequences?
The number of mistakes you can make is infinite in comparison to the number of correct choices you can make. Since you don't have infinite lives and time there must be some manner of problem space reduction to ensure you get anything done.
Luckily for us humans evolution has spend quadrillions of hours doing just that for us. Modern technology has made it so you don't spend your entire life trying to get something to eat every waking moment of the day. This leads to some problems of your ideology of hardships lead to growth. Which hardships? Which growth? Should you go back to living in a cave like a mammal to get the full experience?
> evolution has spend quadrillions of hours doing just that
Magnitude pedantery incoming: 1 billion years is "only" about 10 trillion hours.
yep
This is a good time to point out that slippery slope is a fallacy.
Saying, "Experiencing some friction is good for building character" is not equivalent to saying "We should demolish all technology and force babies to survive on their own in the woods."
That the extreme position is wrong does not strictly imply that the moderate position is too.