When a child is not actively and openly presented with other options/viewpoints,
(in a non derogatory manner)
the options/opinions and viewpoints of their parents (and teachers)
do indeed meet the level of "indoctrination".
Their way becomes the only "way" the young person knows.
As well, parents EXPECT all kinds of things from their kids,
and their kids know it.
Weather political, religious, societal, educational, professional, presentational or whatever.
Still even young individuals CAN find their own way/s,
on their own,
in spite of their upbringing.
This is the strength of the individual.
Most parents call this rebellion.