Villagers can be annoying to move around. In the base game, there are plenty of workarounds, but they're all a bit annoying. Luckily, mods let you play the game how you want to, and this one will let you avoid all those annoyances and just put 'em on a leash. On second thought, I think I get why that's not in the base game. Oh well.
Free to use in modpacks.