Ice hockey i imagine would be useful to say if a particular area sees both street hockey and ice hockey, or if a group of people happen to be involved with both in some capacity. Just like American Football, Americans just call it football but depending on the context someone might need to say American Football, i know i’ve had to a few times in the past but generally its not something that comes up (coincidentally this exact same thing did come up yesterday and a co-worker clarified himself saying American Football).
