Adding a shot clock would be great but I know for some schools in NC, money would be an issue. Athletic budgets are really struggling right now with new cost of officials (if you can find them) and some having to increase their security by adding things like walk through metal detectors. I know some places are now charging 10 bucks a ticket to get in. I was talking to someone that was a family of 5. Out 50 bucks before they have even sat down. Kids want something to eat, before it's all said and done, 100 bucks spent at a Tuesday night basketball game. They have decided it's just not worth it.
Again, shot clock would be great but there are some other issues to tackle first.