> But it would be relatively easy to visit a whole bunch of polling stations
That would make it harder. If you try it for one vote in one place there's a decent chance you might get away with it. You have to hope that the person isn't voting at the same time you are, that the poll workers don't recognize the person, that others voting there don't, etc. It's quite possible you'll get caught, considering these are local areas, but there's enough people that you might get away with it once. But try it 10-20 times, and the likelihood that you're going to get caught increases a lot. And even trying it 10-20 times doesn't mean 10-20 votes, since if the person already voted you'll get a provisional ballot.
So even trying to get a handful of extra votes is extremely risky. If you tried to organize a dozen people to do the same, the chance you're going to get caught goes up massively - both because of the possibility of getting caught in the polling place mentioned before, and the fact that if you try to organize a group like that there's a good chance something will leak out/someone will tell people.
You're in a situation where it's very likely to be caught and, even in the off chance that you succeeded, you wouldn't even be creating enough votes to impact the vast majority of elections. This is why in person voter fraud is so rare.
That would make it harder. If you try it for one vote in one place there's a decent chance you might get away with it. You have to hope that the person isn't voting at the same time you are, that the poll workers don't recognize the person, that others voting there don't, etc. It's quite possible you'll get caught, considering these are local areas, but there's enough people that you might get away with it once. But try it 10-20 times, and the likelihood that you're going to get caught increases a lot. And even trying it 10-20 times doesn't mean 10-20 votes, since if the person already voted you'll get a provisional ballot.
So even trying to get a handful of extra votes is extremely risky. If you tried to organize a dozen people to do the same, the chance you're going to get caught goes up massively - both because of the possibility of getting caught in the polling place mentioned before, and the fact that if you try to organize a group like that there's a good chance something will leak out/someone will tell people.
You're in a situation where it's very likely to be caught and, even in the off chance that you succeeded, you wouldn't even be creating enough votes to impact the vast majority of elections. This is why in person voter fraud is so rare.