Nitpick: A parliament can't be a democracy. It's a necessary ingredient to a democracy, but a parliament itself is just a room full of politicians. It's perfectly possible (and common) for a parliament to be structured democratically. But if it has no teeth, it's not part of a proper democracy.

Eg China has a parliament too but it's just for show. The EU parliament is somewhere in the middle. Norway's parliament is probably the gold standard.