The law on this issue is succinctly stated in Bardin v. State, Dep't of Revenue, 720 So.2d 609 (Fla. 1st DCA 1998), as follows: This court, in Collinsworth v. O'Connell, 508 So.2d 744 (Fla. 1st DCA 1987), held that the change of a child's surname to that of the father, based only on a finding of paternity, is error. The Collinsworth court explained that a child's surname may be modified "`only where the record affirmatively shows that such change is required for the welfare of the minor.