"free" just means "publicly subsidized" in these cases. Not that this is a bad thing, but that's really all it is. See also: literally anything any nation pays for using tax money.
Sometimes it’s privately subsidized, too, such as when you go out to eat and your meal costs more because the restaurant provides free parking. People who don’t drive often pay higher prices subsidizing the people who do, which is something we should talk about more directly.
Sometimes it’s privately subsidized, too, such as when you go out to eat and your meal costs more because the restaurant provides free parking. People who don’t drive often pay higher prices subsidizing the people who do, which is something we should talk about more directly.