Should my first flock have a cockerel?
I would recommend that you do pullets or hens for a year first. There is a learning curve to chickens, and roosters in my opinion take experience. If you take on a rooster, I think you need to recognize that it might not work out. This page is full of "the darling turned into the nightmare" posts. So you need to be prepared to cull the rooster.
But the main reason I believe in waiting a year, is the dynamics of the flock. A rooster chick or chicks raised with just flock mates, quickly becomes much bigger than the girls. Combine this with excess testosterone, and no bigger birds, often times this rooster will become very aggressive. Many recommend that the people walk through the rooster, or act like an adult rooster and school the young cockerel, but really people do not live in their coops/ runs, and the rest of the time, the roosters are bullying the smaller, sexually immature pullets.
There are many aspects to this hobby, and one does not need to do them all at once, pick a project a year. If you wait a year, and add chicks to the flock, that rooster chick will learn respect because he will be living with birds that are much bigger than him, and they will get their bluff in. He is not the most aggressive bird, because there are older birds to thump some manners into him. Growing up in a multi-generational flock, in my opinion, produces the best chance of a good rooster.
So, I would say, wait till next year.
Mrs K