If people don't like it, they can go off in the wilderness and die or go be a slave or get eaten as lunch by some other group.
In most cases, you'll be reduced to a 0 Economy. A 0 Economy is subsistence agrarianism. It gets real simple real fast: You need about 8-10 bushels of food per person to survive (and that would be a diet of 750 to 1250 calories per day) and one acre of land can produce maybe 7 to 10 bushels of food (and don't forget you'll need 2-3 bushels for seed). You'll need 12 people to work each acre of land, assuming you have a animal and a plow. If you don't have an animal and a plow, you'll need about 40 people to clear one acre of land for planting and to plant it in time.
And you're going to use currency? Backed by what? The good faith and credit of your group leader? There's not going to be any money for centuries and centuries. It won't be needed.
The elderly are quite valuable. 1 elderly person is worth 10 iPod Punks. Why? Elderly people survived in a non-technological environment, and many know how to do things the old way, and they know things that the present generations don't.