Most visitors (67%) are teenagers who come through referrals and are accompanied by their parents.

FORBES: Wired

He had a long beard and wore a black shirt with no tie, and was accompanied by his parents and brother.

WSJ: Bail hearings for 2 men in Canada terror plot

Even children accompanied by adults are challenged, as research has shown that much truancy takes place with the consent of parents.

BBC: War on truancy continues