Earlier quoted context omitted.
While true, I suspect most of the people who are looking for walkability want something more than a small town with a pub, a small market, and maybe a couple other stores/cafes/etc. I've stayed in many of those small towns and they can be very pleasant--but there's not a whole lot within easy walking distance.
My partner and I were looking for a walkable urban neighborhood but ultimately ended up in a small town with a pub, market, cafe, store... and a train to the big city. Couldn't be happier, but I wouldn't recommend it to someone who is single.
There's culture and museums and lots of different food in cities, but all I really need is a small smattering of decent establishments in exactly the vein you just mentioned. And of course a good environment for working from home.