Adolescence is a time of change for both parent and teenager, and there are some adjustments parents must make. We call these the five adjustments of adolescence.
Teenager becomes more private and secretive; parent knows less and therefore worries more.
Teenager is differentiating from how they were as a child, so they experiment with new interests/friendships; parental connection becomes more difficult.
More independent social interaction; they have less time for parents.
Leaving the age of command (parents must be obeyed) and entering the age of consent (belief that compliance is now up to them) by using active resistance (argument) and passive resistance (delay); parents become more frustrated and powerless but must continue to assert their influence.
Opposition is a big part of this phase as teens strive to liberate themselves from parental rules to claim independence; this leads to increased rows with parents, who see the child has become more pushy and less pleasing to live with.