An important part of adulting is learning to be quiet and let the other person be wrong.
Ultimately, of course, people make their own decisions. Providing useful and pertinent information so that decisions can be made from an informed standpoint isn't quite the same thing as trying to convince someone they're wrong. And, on a venue like this one, the information can be useful to many people other than the specific person that a reply might be directed toward.
I think a big part of the situation isn't so much WHAT someone decides to do but more that they UNDERSTAND the potential ramifications of their decision.
For example, I have three carry guns. I shoot well with all of them and know how to operate all of them proficiently.
Two of them are identical in terms of where I carry them and their operating procedures. One is slimmer and has lower capacity than the other and I wear it when I can't manage OWB carry for one reason or another. I don't have to think about where I need to reach to draw, I don't need to worry about trigger differences, manual safety differences in operation or position, etc. The grips are a bit different, but not in terms of how the two guns point only in terms of their thickness. The sights have a very similar look between the two guns.
But the third carry gun is different. It's for when I can't carry in a holster. It's much smaller than the other two and because the trigger isn't protected by the method I use to carry it, it has a manual safety. I can't carry in the same location, so that's another variable. It does point the same as the other two for me so that's one variable I don't have to worry about. It has a very noticeably different feel in the hand since the grip is not only relatively thin, but also quite short. The sights are much smaller than my other two guns and they aren't night sights like the other two so their visibility is noticeably less in any conditions but really different if the light is low.
If I needed to access that gun, it wouldn't be a disaster, but it would take more time because I have to consciously think about where I need to reach to get it. I will need to switch off the manual safety and that's something else I will need to think about because it's different from my normal carry guns. I can't react instinctively when I'm carrying this gun, I will have to think about the steps involved in getting to the gun, getting it out, and getting it ready for use. There are practical situations where I might be able to effectively defend myself with one of the other two carry guns but would fail with this one because it's so different from the other two.
I've put myself at a disadvantage compared to my other two carry guns in multiple ways when I carry this gun and I need to keep that in mind when I'm carrying it because understanding one's limitations is pretty important.
I realize that it's not an ideal situation, but so far I can't come up with a better solution--so I have to accept the limitations imposed by this one. But the key is that I realize the limitations of the solution I've chosen and the ramifications of those limitations. That's significantly different from advocating the idea any and every solution is just as good as any other.