Because it ain’t.
Socialist governments tend to be keen on implementing collectivised services, but that’s an effect rather than a cause. State-administered collective goods alone do not a socialist society make. The modern welfare state was invented by Bismarck, for fuck’s sake, and he was about as far from socialist as its possible to get.
The defining feature of socialism is democratic control over the economy; a society in which the working class majority has the power to control the wealthy minority.
