Let's see, the arguments against RDS on a carry pistol that I am aware of are.....
1: RDS is slower
2: Pistols with RDS are harder to conceal
3: A lack of affordable or compatible holsters
4: Dust/fog/rain
5: Unreliability of electronics
I resisted the RDS for a long time, waiting for reliability history to shake out. At the same time, my eyes have aged. The two curves intersecting, I gave it a serious try on a serious carry pistol, and found that my speed and accuracy improved almost immediately. Argument #1 debunked. Next, I went searching for a compatible holster that would allow effective concealment, and found plenty available at reasonable cost. Arguments #2 and #3 debunked.
I dismiss #4 because we've all managed to avoid and/or work around the same issues with optics on long guns. #5 remains a question for certain models but not so much for others.
I'm transitioning to optics on everything that is designed to accept them effectively. I think if you take your role as a defender of loved ones seriously, you should be grabbing every advantage you can. You guys who are determined to remain in the past are on your own.
For an average shooter, with poor or declining eyesight, it will probably help..
