>>38274You don’t need a piece of paper that has your concret pouring credentials listed to be allowed to physically pour concret if you want.
Or fix potholes. Or fix a roof. Or fix tools, guns, vehicles, clothes, grow food, start irrigation.
Theres nothing stopping the survivors to start living as they see fit, no need for the squalor you see in Bethesda Fallout, the old institutions are gone and most people are dead, including the dirty politicians and capitalists keeping you down. If you want to start a farm with a couple of other survivors, what stops you?
And Fallout 1&2 knew that, and they did worldbuilding according to that, it only took a couple of decades for some small outposts to grow into large cities and gangs to band together and form functioning government.