> Schengen has independent of the EU status.
Schengen governs border controls, not the right to work and residency, which is a function of EU membership, not Schengen membership.
Schengen governs border controls, not the right to work and residency, which is a function of EU membership, not Schengen membership.
I think Switzerland has a bilateral agreement with the EU (or via EFTA) that allows for free movement and employment of people, so they enjoy these freedom as well despite neither being in the EU nor the EEA (but they are a member of EFTA).