I live in a liberal area, and the public doesn't care. My hardware store guys don't even ask why- what's the point? Even where the general feel of a small town is antagonistic to LGBTQetc, many members find that people end up deciding what kind of neighbor they want to be, in favor of tolerance, and focus on what kind of person you are.
This was evident to me when I worked in rural WY in 1965, a local woman on the ranch basically looked like Elvis, and surprised the gas truck delivery guy, who said 'OMG, a morphrodite [hermaphrodite]", but to all the other men around, Doris was the most honest, reliable, hardworking person they knew, and the core of small town value here was whether you could be depended on. She had a pair of nylons, but I have no idea when she actually wore them- perhaps to church.
Yes- if you are not yet married, it is far better to be out before you get married, so your wife will come from one of the 15% of women who don't find it a problem. But there are enough reality shows now to demonstrate that for the average woman, including conservative ones, at some point the deepest cultural answer is still to support.
Listen here -gossip circle over coffee-
'Dang it, gals- my husband turned out to be one of them trans' folks, and some could shout fear and shame, but I love that man! I'm standing by him in his hour of need, just like any good wife. I offered him curlers, but he declined. He's still got some good sense! In fact, yesterday he found the place that raccoon was getting in under the house and trapped that critter in no time."