When you have DPI at the 17 or under, you go to the flag or the 2 yard line, which ever comes first.
I also agree that many NCAA rules might make sense, but they would not be appropriate for all the participants. Remember a lot of NF rules are for safety purposes and many NCAA rules would create more contact or more dangerous contact. And then you have to have officials that understand some basics and they don't. I see officials that do small college struggle with even simple interpretations from the NCAA. Now you want a first year guy trying to decide when you have encroachment that should be shut down or not shut down? And at least they have 7 officials at that level when some levels will have 2 in some cases where I live. No thank you!!!
Peace