For me, shooting by feel and experience, including compensating for POI not quite coinciding with POA.....is the fun of fixed-sighted guns. It's a bit of a challenge - and I enjoy that.

Of course, if the gun in question shoots WAY off, say 8" at 10 yards, I would consider that TOO much of a challenge. But, a couple of inches I don't mind.

For me, windage is more important than elevation. I find compensating for elevation easy and it seems to come naturally. Windage, not so much.