While some people may use a scope because they have visual issues such that they absolutely have to have an optic to see a target, I would venture a guess that the vast majority of scope toting side lock folks are simply using it to take much of the work out of learning to shoot well without optics. A simple traditional peep would fix the deteriorating eyesight problem for the vast majority of aging eyes but what these folks really want is to get a gun that meets the minimum legal requirements while having as much modern stuff on it as possible to make it easier.
Those of us that are traditionalists at heart "abuse"
ourselves by spending countless hours learning how to do things the old ways...and actually enjoy it!!! I think there is a term for that....masochism.
It's hard for us to understand or accept that others don't want to spend the time to do it that way.
In my own state the late muzzleloading season was fought for many years ago by traditionalists that just wanted a separate season for "their passion" and were even willing to accept a time slot after all the modern gunners already had their fun, and the bowhunters too. But those that did not want to "pay the price" just had to bitch that they were being cheated because they wanted to use something not "traditional," but still wanted in on the bonus late season. An exception for scopes was set up so that a person could apply and get a special permit to be able to use optics with a doctor's statement (just like guys could do in bow season if they really had to use a crossbow). Of course inlines came into the mix, but they still had to use open sights or a peep. Then the push was on that anyone 60+ should be able to use optics. And then it quickly went from there to anyone could use optics. So now we have a late season that was originally for traditionalists who simply wanted a special quiet time to be the only ones in the woods for a brief period to basically a season that allows scoped modern inline rifles using plastic capped pistol bullets and perhaps even smokeless powder loaded directly into the breech and perhaps even electronic ignition. Might as well just allow any modern single-shot cartridge rifle...pretty much the same difference.