What archaeological or anthropological evidence are you basing these assumptions on? Why would hunter gatherers not wear clothes, when they can offer useful protection against the elements? Why would they not have common customs or taboos ("laws?") at least at the level of families and clans when even gorillas have some semblance of it?
It seems as if you're just assuming the past was some idyllic and anarchist inversion of modernity.
> Why would hunter gatherers not wear clothes, when they can offer useful protection against the elements?
I was curious about this and looked it up. Apparently there was some period of time during which humanity did not wear clothes. This has been determined by looking at the DNA of hair lice versus clothes lice and seeing where they diverged: http://news.ufl.edu/archive/2011/01/uf-study-of-lice-dna-sho...
There were no clothes, no laws, no social signaling for the most part. If you didn't like your tribe, I'm sure you were free to run away and eat berries in the forest and try to figure it out yourself.
These days being homeless is illegal and they face a lot of harassment. You are forced to conform and commute to a job to pay for a bed to sleep in.