Was considering picking this up to see if it would be any better than the anime. Doesn't sound like it.
Seriously, if you don't want the OP people of your village to interfere with the outside world, DON'T LET THEM LEAVE! If they are too stupid to understand why, or can't be trusted to not runaway on their own, kill them. You would be doing them, and yourselves, a favor.
The level of stupid is both infuriating, and heartbreaking. Stories like this should be about how far the MC can go, not about what lengths people will go to to hold him back.