This is true. And it should be true. Experience counts.
With all jobs, you just don't walk in off the street, with no experience, with no training, into a high level job, in charge of a team of subordinates.
Long ago someone coined the term "outsider" and everyone started parroting it thinking somehow, that it was a good thing.
The solution is not to elect inexperienced politicians into the highest office of the land. The solution is: to monitor the experienced, trained, politicians we elect; to fix and enact laws to that effect; (and 'monitor' also means tracking the money flows [donations, etc.]).
The problem is, these changes must be implemented by ... elected politicians ... . So for real change to happen, we the people have to stop bs'ing each other, call a spade a spade, and force these changes to occur.
Yeah, don't we know it.