when inmates are put into prisons its because they didn't something against the law and they need a form of punishment. they are placed within a prison, where there is space for them to do there time. every person gets treated equally , equal amount of time outside, they eat the same food, same schedule, if they do something wrong they get put into seg.
No they don't. Before sent to prison we are already pre-wired to group within our own ethnicity. This is done by default due to our comparability. In school you see alot of ethnicity hanging around each other (there are some that are not like this). Even in the suburbs or inner cities as per example, korean community, japan, chinese, jamaican, hispanic, etc.. Theres a form of cultural understanding that they will not get from another group of individuals. Such as in prison they are more keen to go with there own ethnicity since that is what they have learned from. Call it like a comfort zone something the individual already knows and understands.