och hans granne tycker det är jättekul att Bertil klättrar på hans klippa och störs ej av bultarna, ... What now?
Bertil dude must be simply happy, what else
In reality, the situation is way less idyllic. Sweden is no Slovenia or Spain, most of the crags in urban regions such as Stockholm or Göteborg have been climbed already. In some places - each and every square meter of climbable rock.
Ok. Let's imagine that you want to "drill and bolt", and you even have got yourself a decent drilling machine! Jeah, here we go! But wait. First you need to find something to drill, some place you would be able to squeeze in your new fantastic and beloved route. But everything is taken. Everything. What remains looks like shit. Vegetation, 5cm of black crap on all surfaces, tons of loose rocks everywhere, hard approach, hard to fix a top-rope even to start with.
Ok, you have found it, your magic line, well hidden and thus missed by all those who tried before you. What's next - start drilling! No, not so fast. You need to clean it all up, starting from the exit = 10m2 of absolutely useless rock as none will be interested in that 3b+ part above your new top-anchor. But if you don't clean it all up there, the shit falling from above will destroy your route in a matter of weeks, even days. Ok, you have done with that. And the moment of truth has come, you drill in your top-anchor! Hallelujah! What's next? To bolt it up? No. You need to brush up the whole line, including a strip 1m to the right and 1m to the left of it, otherwise the shit will take over sooner or later. Done.
Drill in the bolts next? No. You need to be sure that all those jugs (and foot-holds too) which you have visualized for doing clip-ins will hold long enough. So, you need to try them, to climb the route on top-rope. This calls for a partner, which means revealing your precious project to someone... An alternative could be to clogg it, but you need to know or learn how one does that
Only after that, you can drill and place the bolts. That's it? No. Now it is time to brush it all once more, to remove the remaining crap plus all the dust due to your activities like dozens of abseils.
Still sounds attractive?