School discipline relates to actions taken by teachers or school organizations toward students when their behavior disrupts the ongoing educational activity or breaks a rule created by the school. Discipline can guide the children's behavior or set limits to help them learn to take better care of themselves, other people and the world around them.

In the United Kingdom, the county lines drug supply model is the practice of trafficking drugs into rural areas and smaller towns, away from major cities. Criminal gangs recruit and exploit vulnerable children, sometimes including children in pupil referral units and those who have been excluded from school, and exploit them to deal drugs. Some young people are recruited via debt bondage, whereby they enter county lines to pay off drug debts. Many of these activities are forms of modern slavery.