Parking is sadly a nightmare, we've built a society where everyone 'needs' a car. Not just one. One each. That's two, then the elder child wants a car. That's three. Sibling. That's four. Unless you've got a big driveway, then there's a problem. So every street is lined with them, pavements are blocked, driveways clogged, and every front garden concreted into weary submission. Because we need those cars so much, very few people think about where to put them. Cram them in until our entire environments strain with the bloody things.
But that's where we are. I'm pretty bolshy about it, I had the police move the chap who was parking on the pavement corner near my house (but that was genuinely dangerous), and I'm contemplating annoying the council in general about blocked pavements, but I doubt I'll turn the tide, and you have to pick your battles. Negotiated settlements, especially with neighbours, are a better approach. Sticking a wall in their way probably only passes for negotiation if you're the Israeli government.
This from someone who spent six long years arbitrating parking disputes amongst people who bought houses with one parking space and arrived with three or four cars. Believe me, that kind of stuff etches your soul like acid.