Why do a lot of martial arts classes bother saying a few words in a different...

[Pigonastackofmoney]

...language? Say you do judo. Why would you bother saying commence in japanese (hazjumay or something like that), stop (yamay), etc.? It seems silly to say a few words in Japanese. If you're not going to teach the whole class in the language, why bother for a few words? Tradition? Do you think the creator would care if you translate the techniques into English if you're explaining how to do it in English?

I'm not a troll. Sorry if this comes across as rude it just bugs me a bit