My grandma raised lots of chickens, she usually got about 100 a year as day old chicks. She got unsexed chicks and we ate the roosters. They were kept in a good strong building at night and allowed into a fenced yard during the day. We fed them vegetable scraps and weeds from the garden. Their little set-up covered almost an acre because we had a farm and grandma was the neighborhood egg lady.
The pen was regular fence that everyone used around their yard in that era, holes were too narrow for the chickens to slip through and it was at least 4 feet high with several inches buried in the ground. Both chickens and predators will dig, chickens to make dust bath bowls and predators trying to get in. A permanent set-up has to have secure fencing, chicken wire is not fencing. The building had a concrete floor with block a couple feet up the sides. The windows were glass with ventilation at the top (the tops tipped out). We never left the chickens out after dusk, there was a light inside the coop to encourage them to go inside when it started getting dark.
In areas with little winter sunlight chickens need to have lights on in their coop for 12 to 16 hours a day or they will stop laying. They need a high protein diet such as layer pellets or crumbles. In areas with low soil calcium they need extra calcium which can be provided with crushed oyster shells or their own broken egg shells (by crushing the shells they never learn to associate the whole eggs with the shells). Fruit and vegetable scraps are a good addition to their daily feed, and some people add black hull sunflower seeds. I don't believe in a vegetarian diet for chickens. By nature they are omnivores and dearly love insects and worms. They'll also eat meat if given the opportunity. I know of people who have scooped up road killed raccoons to feed to their chickens.
If you want friendly hens you need to start with younger chickens, not full grown and not babies. You'll have to spend a lot of time with them, offering them treats and such. You don't need a rooster to get eggs, some studies have shown hens lay better without a rooster around.
One last word of warning, make sure you are allowed to have chickens in your neighborhood. Many people have failed to take that step and been heartbroken when a neighbor complains and they have to get rid of their chickens. Making friends with neighbors might be good but won't save your flock if anyone complains, and anyone can complain, from the electric meter reader to someone just passing through. Also, don't let your chickens be the neighborhood problem. I was involved in a local situation where one family was keeping chickens illegally but threatened all the neighbors that if any of their free range chickens were harmed they would retaliate. Needless to say, the chickens didn't last long.