It varies wildly sometimes within the same country like here inside America. I’ve been voting by mail my entire adult life, but a lot of people only really star

It varies wildly sometimes within the same country like here inside America. I’ve been voting by mail my entire adult life, but a lot of people only really started to do that with the pandemic but it didn’t stick everywhere, nor was it popular everywhere. Parties used to also choose their own nominees inside private conventions, but now there’s a system of primaries and caucuses that allow a complete outsider to just register with an party and earn the nomination by working outside of the party machinery. In California there’s no guarantee you can even put forward a candidate in every election below the Presidential-level because there’s only two slots in the election that are earned through an open primary, so it’s not uncommon to have two of the same party running against each other.