I’ve had a couple buyers comment on it, but never demand a change before closing. Usually it’s the first-time homebuyers who ask about “why does this one turn left and that one turns right?” and I just tell them it’s a quirk of older plumbing. Most folks shrug it off once you explain, but I have had one really picky buyer who wanted everything to match... That was a headache I didn’t need, especially since the handles worked fine and there weren’t any leaks.
From a landlord’s perspective, mismatched handles or reversed hot/cold can confuse tenants, and you end up with more calls than you’d expect—especially if they have kids. I try to fix it if I’m already in there for something else, just to avoid surprises (and angry texts). But unless it’s a safety issue or there’s a risk of scalding, I don’t go tearing out walls just for handle direction. Sometimes you gotta pick your battles with these old buildings...
Honestly, I think you’re handling it the right way. I’ve run into the same thing—one bathroom sink turns left, the other right, and it’s just how the house was built. Most people don’t care once you explain, but there’s always that one person who wants everything “perfect.” I’d rather save my energy for the stuff that actually matters, like leaks or weird noises in the walls. Matching handles just isn’t worth the headache unless you’re already doing a big reno.
It’s funny how often this comes up. The direction the handles turn is usually just down to how the valves are installed—sometimes it’s a space thing, sometimes it’s just whoever did the job wasn’t thinking about matching them. Technically, there’s a “standard” (hot turns left, cold turns right), but in reality, older houses especially are all over the place.
I get why it bugs some people, but unless you’re swapping out the whole faucet or redoing the plumbing, it’s not really worth tearing into the vanity for. Like you said, leaks or weird noises are way higher on my list. I’ve seen people try to swap cartridges to fix the direction, but that can get messy fast if you’re not careful.
If it’s just a cosmetic thing and everything works, I’d leave it alone. Maybe just warn guests if they’re likely to get confused and blast themselves with cold water.