We have no operational space ships, so with current technology we will never get there. The fastest feasible technology for human-carrying ships is the fission

We have no operational space ships, so with current technology we will never get there. The fastest feasible technology for human-carrying ships is the fission fragment rocket, with a burnout velocity of about 0.1c. That's 40 years to Proxima b. An 11 ly trip to this world would not be feasible, because a multi-generational ship with the payload fraction needed to hit 0.1c is not feasible. Probes can be much lighter, enabling higher payload fractions and faster trips.