I'm getting back to the sport after years of hiatus, and my eyes are not what they used to be. Scopes are now a fact of life, yet all my rifles are "older," with iron sights. I learned to shoot with iron sights, and I still like to shoot with irons. To me they are like the spare tire in your car - you hope you never need it, but if you do, you're sure glad you have one.
The problem is that once the rifle is scoped, it's difficult to access the irons. I'm not a proponent of see-through rings, so good quality quick-detach mounts were the answer for me. Thanks to my dummy-proof (or at least dummy-resistant) iMac, here's a clip to show what I mean: