Ok. So I have a very genuine question.
I went to a catholic highschool,
and was never taught any details about evolution whatsoever.
(unless I went to class stoned that day and forgot)
In what way would my life be better,
if someone had taught me about the theory of evolution?
Good question.
Having a naturalistic explanation for why there is such diversity in animals, at the very least, would allow you to be equipped with the idea that things that
seem like they are ordered according to an over-arching design, might be explainable naturally.
Imagine that one of your theist high-school friends (or someone on RF) says to you: "There is no reasonable scientific explanation as to why this universe seems so ordered as to allow us to live. Therefore, God must exist."
Superficially, this seems to be a good explanation. But knowing evolution, and that things that are seemingly ordered can have a natural explanation, you reply "Just because there is no current scientific explanation for the organisation of our universe, does not mean there is no scientific explanation at all. Our natural ecology system seems to be ordered, and was once claimed to be a divine creation, but it's diversity can be explained through evolution. In the future, there might be scientific explanations that are the equivalent of evolution that explain why we live in a universe that seems so ordered as to allow us to live."
Quite apart from this, the idea of evolution has also influenced religious beliefs (particularly deism), which postulated that God might create the universe, but set internal laws in order for it to work without intervention.
Are these reasonable answers?