I really think it depends on what sort of philosophical view on epistemology the said person hold. If he/she happens to be a Pyrronist ( or a modern Fallibilist ), for example, then evolution can only be believed given that all knowledge if merely an aproximation of the truth.
If the person is a scientific-realist with the knowledge science can provide, then merely "believing" in evolution would be unfair, given it's a theory with tons and tons of evidence from all over the world.
If the person is a scientific-realist with the knowledge science can provide, then merely "believing" in evolution would be unfair, given it's a theory with tons and tons of evidence from all over the world.