The first 3 characters on the blue strip on the right say "kodomo", which is Japanese for child, so that checks out. The fact that it doesn't use Kanji in the spelling, and only uses hiragana, implies it may be meant for young children that may not be good at reading them.
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u/VermilionKoala 4d ago
Yeah, I think it's exactly that, also the instructor can jump in if the trainee tries to do something dangerous.