Jesus instruction to call no man "father" was an effort to emphasize the need for a religion that is at least as interior as it is exterior, for religious integrity and for a sense of service.
The same passage also says not to call anyone rabbi (teacher) or master.
Do you call your male parent Father? Don't most Christians do that? If so, are they violating Jesus' command? Christians have not understood Jesus' command as preventing them from calling someone teacher. In our society, the term master is used rarely.
This is not to dismiss Jesus' teaching on the subject of titles. Chapter 23 of the Gospel of Matthew opens with 36 verses on the scribes and Pharisees and ends with three verses of lament over Jerusalem.
If all of us strive for what Jesus requested, using the terms father, teacher or master in any context will cause fewer problems.
St. Paul described himself as a father to the Christians in Thessalonika (1 Thessalonians 2:11) and in Corinth (1 Corinthians 4:15). Applying the term father to priests is a custom and not an obligation.