Personally, I'd only think to question someone's choice of carrying a diminutive 5-shot snub if they were carrying it as a talisman and didn't practice with it.
If someone can shoot their 5-shot snub accurately and controllably, I certainly wouldn't presume to question their choice of carrying one as a CCW, off-duty or Secondary/Backup choice.
Granted, shooting the small revolvers, and especially the lightest of them, tends to demand more of the shooter than the all-steel versions, and certainly more than full-size revolvers.
Back when I changed from only owning all-steel snubs to ordering my first Airweight ('99 or '00), I realized I needed to dust off my service revolver skills (transitioned from issued revolver to pistol in '90). I put a few cases of various standard pressure and +P loads through that first Airweight, a 642-1, to bring my DA revolver skills back up to snuff.
That first 642-1 hooked me. I not only own a pair of 642-1's nowadays, but a pair of M&P 340's and a nifty little 37DAO (short production run from a canceled overseas police contract). I prefer to carry (and shoot) those lightweight J's more than my steel J's.
Sure, I still sometimes grab one of my assorted compact or subcompact 9's, .40's or .45's out of the safe for retirement carry options (since I invested so many years practicing with them as an instructor and carrying them off-duty, after all). It's just that the diminutive, lightweight J's offer me a much wider range of retirement weapon options for carry with the clothing I wear for retirement, and for my retirement activities.
I may not shoot several times each month now that I've hung up my instructor's ball cap, but I still include at least one of my lightweight J's with whatever else I grab to use at range qual/drill sessions nowadays. They also serve me quite well for my roadtrips in the capacity of LEOSA weapons.
