If you only look for employees in places with young people, that is likely illegal. It would take a pattern of this over time. If someone found out (e.g., an

If you only look for employees in places with young people, that is likely illegal. It would take a pattern of this over time. If someone found out (e.g., an inside ratted you out), and a lawyer took it on contingency (because the company doing it has deep pockets), then it could be serious trouble.