Those towns and npc's better be disableable. That seems to make the start of the game way to easy as you have everything -right there- handed to you at the start. Farms, furnaces, work benches, SHELTER. Where's the survival in that?
Hunger should also be able to be turned off. I was never a fan of mods like that and wont be a fan if it's a perma fixture in minecraft with no way to disable it.