Everyone who is Jesus’ disciple is his witness (Acts 1:8) and is sent somewhere, whether locally or further afield. The New Testament shows us fishermen, tax collectors, former prostitutes, women who’d had 5 husbands, zealots, ex-Pharisees, old, young, rich, poor, educated and uneducated, sent out on mission to draw people to Jesus. So there’s no excuse for watching someone else do it instead of us.