My children are the sole purpose of my life.
After experiencing our first child going from Kindergarten through fifth grade at a public school (Meeting both White Trash and negroified children). We decided to send them both to private Christian schools.
Though discipline does start at home, sending them into an unhealthy environment (my opinion is public schools are, in general, unhealthy) helps defeat your objectives.
Of course, Private schools are expensive ($900 a month), but they are our investment for the future. It has been a blessing since. And, despite the cost, it is worth it.