Even though there may be a desire to serve God in a pastoral capacity. That alone is not sufficient. There are objective qualifications that should confirm or deny the person that responsibility. For one to be a pastor there must be proof of leadership in other ways including making disciples. There must be other practical qualifications such as his home being in order.
A "calling" can be very subjective but proof of leadership is not. There must be an answer to the question, "What qualifications do you have that makes you a good leader?"
A "calling" can be very subjective but proof of leadership is not. There must be an answer to the question, "What qualifications do you have that makes you a good leader?"