The thing is our bandwidth is limited and we allocate it differently now. However, not all replacements are beneficial and adding external dependencies adds points of failure.
Challenging yourself is conscious decision. Make choices to challenge yourself, and don't build an echo chamber.
It's remarkable what some 200,000 people (maybe fewer?) in ancient Athens were apparently able to come up with.[1]
They even did pretty well with computing with the Antikythera mechanism and its predecessors; though, like Babbage, they were limited by the manufacturing technology of the day.