As far as it being a lot of work to do the edging if you grow grass there, all I can say is sheep do a good job of keeping it trimmed right up close to any wall. It always looks so tidy when they do it. In some so-called backward countries people keep sheep instead of own lawn mowers.
Those of us in North America favour the gas powered lawn mower instead. It throws the grass right up against the wall and still doesn't cut any of the blades closest to the wall. It's disappointing to see a fresh cut lawn with the cuttings all sticking onto the wall. Unless of course, it makes a pretty face.