I don't know for everywhere, but we don't chain them and they only stay for about 2 weeks (2 weeks is the minimum due to regulations) in their hut, after that they go to the veal farm where live in a "straw yard barn" (a barn with one big open space with straw on the floor) where they call walk freely and they also go outside daily.
But that's for organic farming in the Netherlands, it may be different from a nonorganic farm in the US.
For sure, it is definitely regional whether or not they are group housed or given freedom to run around. There are a variety of setups even within North America.
So being vegan? That's what this discussion has been about? There is no way everyone would go vegan. Let's just leave this discussion as is and not let it get toxic.