How do Baptists reconcile the pastoral call with apparent family vocation?

Baptists not the only denomination where it is common for the male children of the pastor to go to seminary and enter the pastorate as well. It appears somewhat common not only for nationally known ministers but also ministers of local congregations to have some of their children follow in their footsteps. The question is for Baptists for scoping purposes. I could not find any actual statistics regarding how commonly this occurs and therefore ask only from the standpoint of personal observation. Given that the Bible indicates pastors and teachers are gifted by God and called into that position rather than it being handed down from father to son like regular vocations (Grandpa was a carpenter, dad was a carpenter, and I am a carpenter), how do Baptists reconcile the relative frequency of a pastor's son becoming a pastor himself?