Plain-English definition
An opportunity system is the route around the opportunity.
A course, fund, programme, placement or youth project is only one part of the picture. The real route includes how people find it, who explains it, whether it feels safe, what rules are hidden, what support exists, how decisions are made and whether there is a next step afterwards.
Positively Devious helps readers look at that full route. The goal is not to blame young people or communities for not using opportunities. The goal is to see where routes are quietly narrow, confusing, socially filtered or short-lived — and then make better decisions.