alt Hacker NewsAs a university level educator I am pretty confident most universities worth their salt do in fact teach you by "actually doing the snowboarding" to stay with your analogy.
But it is also true that (1) not all universities (or all departments, or all professors) are worth their salt and (2) snowboarding may not be a skill that is highly sought after in the society you live in.
Gladly most academic skillsets are highly transferable if the student isn't totally dull.
I will say you are right.
But ;)
At the same time Universities worth their salt also get students that are most likely going to be more self staring. Likely good professors will fail students that need more hand holding because it will be waste of their time.
So there is no magic trick to scale up. Besides getting more people to understand school/university is not going to do hand holding. You will get tools to learn how to learn and curated resources all the other things depend on you.