One of the first eye-openers for new homeschool parents is the realization that it's impossible to teach children who refuse to obey!  Consequently, we spend most of the first year teaching discipline and self-control (if it hasn't already been taught).  It boils down to this:     

"Either your children are a JOY to be around or a BURDEN to bear."

If having your children at home all day is more burden than joy, homeschooling won't last too long.   Dealing with disobedient, disrespectful children is physically, mentally and emotionally exhausting!  Simply put, consistent discipline is a major part of the homeschooling experience.

Obedience, self-control, patience and the ability to get along with siblings is equally as important as academic subjects.  With these character traits, plus a good attitude towards authority, children are well on their way to a successful life. 

Of course, you DON'T run your home like a military boot camp!  

Children learn by example, love and encouragement.  If we yell and scream at them, how can we expect them to act lovingly towards each other? 

Socialization begins at home with the ability to get along with parents and siblings.  If we don't expect children to be obedient to their parents, how will they obey the law?  If they aren't able to cooperate with siblings, friends, teachers and coaches, how will they cooperate in the workplace?  Therefore, the values we teach in home schooling have a direct effect on our communities, the world and our spiritual accountability as parents.

When they're young, we discipline children to obey limits and requirements at home and in their small world.  Eventually, they learn to be self-disciplined,  leading to self-respect and respect of others as they move into larger circles of influence.  Discipline IS "The First Step" in homeschooling.