You can get different behaviors as they go through puberty. The girls each have their own personality and have an effect on this too, both the mature hens and the immature pullets. Not all mature hens and immature pullets act the same either. Some can be brutal, many are more subservient.what I want to know is what is good and proper behavior for a young rooster? As far as how he treats the ladies… should he ever chase them or should he wait till they squat??
Some boys can be intimidated by more dominant males, even if they are the same age. They do not crow or show any interest in the girls. Some don't worry about any of that, they can't be intimidated. Some boys will fight each other, at least until they are defeated a few times. Some fights may be to the death but usually when one starts losing he runs away. Sometimes the boys may gang up on the girls where they all (or several) forcibly mate with one or more. The boys can often set up a ranking where one is dominant over the others. Often they can split the girls between themselves with each keeping his own harem but you generally need a lot of territory for this to work.
But at some point they usually mature enough to start acting like adults. With pullets, that's typically when they start to lay. It can vary a lot with cockerels, it is hard to generalize. Some older hens can adjust to a rooster in the flock easier than others. With the majority they settle into a pretty peaceful flock but some individuals never seem to grow up. Some hens can never allow a male to become flock master, that can get bloody. Some boys are wimps all their lives. Most flocks will settle with a male flock master where they all get along really peacefully but occasionally you get one that never becomes peaceful. The rooster is just a brute. Some hens can be pretty brutal, especially if the rooster is a wimp. Some flocks can keep different males, especially if you have enough room for them to set up a separate flock.
A lot of different things can possibly happen, some depending on individual personalities and some depending on how much room they have, among other things. No one can tell you for sure how your situation will work out.