Experience is way over rated. Good practice isn’t overrated. The most wins in school history before Levi was turned in by an underweight HS freshman quarterback. He won 8 of nine games he started. Everyone knows it’s Jake. Brian Mitchell won 7 out the high school box in ten game seasons.
Fields has several years of development. LL started at Maryland on several occasions.
If any of these unplayed quarterbacks are worthy they got enough experience.