Was just about to ask basically the same question. So glad I found this post!
I am in the process of building my coop and planning on getting some chicks for the first time. I, too, was wondering about the need for a rooster...I mean, besides the obvious. My reasons, also, for getting hens are eggs and entertainment.
I like the idea of a rooster to help with protection and keeping the girls in line (and added entertainment), but I've also heard horror stories of how mean they can be. I have 4 kids (2 under the age of 3), and I would hate for my kids to not even be able to enjoy seeing the chickens (or playing outside, for that matter) for fear of the rooster attacking them.
Here's one question I have: how do most people keep from having an over abundance of fertilized eggs? Do you just keep the rooster separated from the hens most of the time, or does he NOT just "go at it" with all the hens all the time so that you can keep him with them? I know this probably sounds silly to some, but I really have no idea how this all works (and I've read the books). I wouldn't mind my hens having some chicks now and then, but I don't want to end up with too many to handle.
Also, if I were to get a rooster, which kind would be the most docile?
Thanks for all the helpful info! I love this site!